Manual of U.S. Patent Classification
as of June 30, 2000

Class
200
ELECTRICITY: CIRCUIT MAKERS AND BREAKERS

Class definitions may be accessed by clicking on the class title, above.
Subclass definitions may be accessed by clicking on the subclass number, below.

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Subclass		Title
ClassTitle		===> ELECTRICITY: CIRCUIT MAKERS AND BREAKERS
1R		MULTIPLE CIRCUIT CONTROL
2		. Loop
3		. Combined thermal current
4		. Combined pivoted and reciprocating contact
5R		. Multiple switch
5A		. . With independent operators
5B		. . Independent operators interlocked
5C		. . Independent operators sequence locked
5D		. . Multiple push-button subsequent release
5E		. . Multiple push-button only one operable at a time
5EA		. . . Discrete and identical geometric shaped interlocking slider means
5EB		. . . Laminated locking slider arrangement
5F		. . Starter switches for fluorescent lights
175		. Automatic multiple contact selective means
176		. . With multidirectional selector means
177		. . . In different planes
178		. . With motion in a single plane
179		. . . Rotary
180		. . . . With clutch
6R		. Pivoted contact
7		. . Combined types
8R		. . Radial contact pressure
9		. . . Plural switch
10		. . . Arc extinguishing and preventing
8A		. . . Axial bridging
11R		. . Dial type
12		. . . Electromagnetic release
13		. . . . Plural switch
14		. . . Plural switch
11A		. . . With axial bridging
11B		. . . Clamping contacts
11C		. . . . With circuit
11D		. . . Wafer
11DA		. . . . Printed circuit
11E		. . . Common bias
11EA		. . . . With lift
11G		. . . Leaf spring bias
11H		. . . Laminated leaf spring
11J		. . . Coil spring bias
11K		. . . Diverse individual bias
11TC		. . . Tap changers
11TW		. . . Thumbwheel
15		. . Knife blade
6A		. . Universally pivoted handle
6B		. . Cam actuated
6BA		. . . Lever borne contacts
6BB		. . . Leaf spring contacts
6C		. . Leaf spring contacts
16R		. Reciprocating contact
16A		. . Face or normal bridging contact
16B		. . Plunger type
16C		. . Spring-biased
16D		. . Flexible, self-biasing
16E		. . Plug type
16F		. . Knife blade, contact clip
17R		. Operating means
18		. . Plural switch
17A		. . Retarded
17B		. . Step-by-step
1A		. Bank of leaf spring contacts
1B		. Sequential operations
1TK		. Telephone key, leaf spring
1V		. Reversing
600		CAPACITIVE SWITCH
181		ELECTROSTRICTIVE OR ELECTROSTATIC
19.01		PERIODIC
19.02		. Combined
19.03		. . Rotary and cam
19.04		. . . Timer
19.05		. . . Adjustable
19.06		. Multiple contacts
19.07		. . Rotary
19.08		. . . Timer
19.09		. . . Commutator
19.1		. . . Distributor
19.11		. . . Adjustable
19.12		. . . Radial contact pressure
19.13		. . Cam operated
19.14		. . . For automotive
19.15		. . . Programming timer
19.16		. . . . For sign display
19.17		. . . . . Traffic control signs
19.18		. Rotary
19.19		. . Adjustable
19.2		. Cam operated
19.21		. . Adjustable
19.22		. . . Contact breaker assemblies
19.23		. . . Centrifugal advance mechanism
19.24		. . . Distributor plate
19.25		. . . Vacuum or suction controlled advance mechanism
19.26		. . Automotive distributor contact breaker assembly
19.27		. . . Contact breaker lever detail
19.28		. . . Ignition point detail
19.29		. . . Timer
19.3		. Contact breaker detail
19.31		. . Timer
19.32		. Distributor cap detail
19.33		. Distributor rotor detail
19.34		. Elevated
19.35		. Locks
19.36		. Magnet
19.37		. Traffic signal
19.38		. Wire guard
19.39		. Distributor
19.4		. . With noise preventing means
33R		RETARDED
34		. Dashpot
35R		. Clock train
36		. . Rotary
37R		. . . Multiple contact
37A		. . . . Cam operated
38R		. . Cam operated
38A		. . . Dial manually set
38F		. . . Resettable with automatic return
38FA		. . . . Resettable interval timer for oven, range
38FB		. . . . Resettable interval timer for radio or clock
38B		. . . Sequential program actuated by cam disc
38BA		. . . . Individually adjustable cam disc
38C		. . . Drum or pattern surface actuated
38CA		. . . . Adjustable surface
38D		. . . Continuous cycle timer
38DA		. . . . Twenty-four-hour cycle
38DB		. . . . Sunday cutout
38DC		. . . . Adjustable cycle for seasonal change
38E		. . . Longitudinally movable
39R		. . Latch trip
40		. . . Motor release
41		. . . Weight release
39A		. . . Range timer
35H		. . Hand operated
35B		. . Radio
35EQ		. . Seasonal change
35A		. . Automobile or radio
35W		. . Rewinding for clock
33A		. Mercury
33B		. Cam operated
33C		. Chain or flexible drive
33D		. Longitudinally movable carriage
42.01		PLURAL SWITCHES CONTROL SINGLE CIRCUIT
42.02		. Coded removable actuator
43.01		SWITCH ACTIVATION INHIBITOR (E.G., UNAUTHORIZED/INADVERTENT USE PREVENTION)
43.02		. Combined with connector coupling
43.03		. Engine starter protector
43.04		. Removable actuator
43.05		. . Actuator is circuit completing element
43.06		. . Plural switches actuated by a single coded element
43.07		. . Reciprocating actuator activates switch
43.08		. . By rotation of actuator
43.09		. Combination automatically actuates switch
43.11		. Actuator locking device
43.12		. . Combination lock controls actuator
43.13		. . Reciprocating actuator (e.g., push button)
43.14		. . Circuit breaker handle type (i.e., padlock)
43.15		. . . Including attachments to lock handle
43.16		. Actuator blocking device (e.g., latch)
43.17		. . Hand grip type (e.g., power tool)
43.18		. . Push button type
43.19		. . Removable blocking element
43.21		. . . Mounted on actuator
43.22		. Locked cover prevents access to actuator
46		PATTERN-SHEET CONTROLLED
47		LIMIT SWITCH
48R		HIGH-POTENTIAL TYPE
48P		. Pivoted insulator
48A		. Rotating and pivoted
48KB		. Knife blade
48V		. Vertical reach
48SB		. Side break
48CB		. Center break
49		POLE SWITCH
50.01		INTERLOCKING
50.02		. Between switches and housing
50.03		. . Handle latches cover
50.04		. . . Simultaneous operation
50.05		. . . Handle disconnected from actuator
50.06		. . Handle disconnected from actuator
50.07		. . Fuse blocks
50.08		. . Contacts shielding member
50.09		. . With key-controlled
50.1		. . Lid-controlled
50.11		. . Switch handle locking means
50.12		. . Dual interlocked between door and switch
50.13		. . . Door independently opened
50.14		. . . Lid carrying elements (e.g., contacts, terminals, or movable switch member)
50.15		. . . Defeater interlock
50.16		. . . Independently locked switch
50.17		. . . Drawout-type switchgear
50.18		. . Switch latches cover
50.19		. . Predetermined handle position locks or unlocks switch
50.2		. . For bus-duct type
50.21		. Drawout-type switchgear
50.22		. . Shutter over contacts
50.23		. . Truck type
50.24		. . With racking mechanism
50.25		. . . Racking screw
50.26		. . With position indicating means (i.e., connect, disconnect, or test)
50.27		. . Contact or contact mounting structure
50.28		. Between switch and connector assembly
50.29		. . Switch locks plug
50.3		. . Dual interlock
50.31		. . Plug controls switch
50.32		. Between plural switches
50.33		. . Alternately operated
50.34		. . . Rotary
50.35		. . . Pivot
50.36		. . . Push button
50.37		. . Sequentially operated
50.38		. . . Grounding transformer switch
50.39		. . . Disconnect switch
50.4		. . . With handle
51R		COMBINED WITH OR ACTUATED BY CONNECTOR COUPLING
51.01		. Candle-simulating assembly
51.02		. Multiple coupling
51.03		. . Multiple circuit control, selective
51.04		. . . Plural switch
51.05		. Multiple circuit control, selective
51.06		. . Three-or-more contact coupling
51.07		. Plural-position coupling
51.08		. . Bayonet-coupling
51.09		. Coupling-actuated switch
51.1		. . Switch closing on coupling separation
51.11		. Switch in parallel with coupling contacts
51.12		. Meeting contacts of coupling members forming switch contacts
51.13		. Bayonet-coupling
51.14		. Screw-coupling
51.15		. . Pull-chain switch
51.16		. . Push-button switch
51.17		. . Rotatable-key switch
51LM		. Lazy man
52R		SPECIAL APPLICATION
56R		. Indicating instrument
56A		. . Movable contact beater type
60		. Portable light
61		. Incubator
61.01		. Sound wave responsive
61.02		. Light responsive
61.03		. Gas or smoke responsive
61.04		. Liquid or moisture responsive
61.05		. . Conducting liquid
61.06		. . Humidity responsive
61.07		. . . Weight of absorbed water
61.08		. Frangible or destructible type
61.09		. Tramp metal actuated
61.1		. Game or amusement piece operated
61.11		. . Ball (e.g., pin ball)
61.12		. Bicycle chain, sprocket or brake actuated
61.13		. Running length, web or strand actuated
61.14		. . Actuator attached to or part of web or strand
61.15		. . Spooled or reeled quantity
61.16		. . . Diameter sensing
61.17		. . Spool, reel or idler rotation
61.18		. . Absence or loss of tension (e.g., breakage or misalignment)
61.19		. Movable or removable interposed non-conductor
61.2		. Container contents level responsive
61.21		. . Fluent solid bin or hopper
61.22		. Pneumatic tire inflation responsive
61.23		. . Casing deformation feeler
61.24		. . Ground engaging feeler
61.25		. . Fluid pressure actuated
61.26		. . . Biased tube engaging member
61.27		. Turn indicator type switches
61.28		. . Gear shift lever mounted
61.29		. . Pedal controlled or mounted
61.3		. . Reset by completed turn
61.31		. . . Set by turning
61.32		. . . . With pre-turning setting means
61.33		. . . . Steering arm, draglink or tie rod actuated
61.34		. . . Controller moves reset dog into operative position
61.35		. . . By movement of steering wheel or post relative to column
61.36		. . . . Wheel or wheel attached member engages controller or rigid extension
61.37		. . . . Through gearing
61.38		. . . . Wheel carried switch unit
61.39		. Control by direction of rotation of shaft or spindle
61.4		. Diameter responsive (e.g., wear)
61.41		. Stationary feeler detects transient object
61.42		. Feeler moves into detecting contact with object
61.43		. . Sensitive edge type closure
61.44		. . Vehicle attached or carried
61.45R		. Change of inclination or of rate of motion responsive (e.g., inertia and tilt switches)
61.46		. . Rotary motion
61.47		. . Conducting fluid type
61.48		. . Oscillating controller
61.49		. . . Resilient support arm
61.5		. . . Restrained against return to normal
61.51		. . . Conducting
61.52		. . Tilt responsive
61.53		. . Linearly moving controller
61.45M		. . Magnetic holding means
61.54		. Steering wheel, shaft or column mounted
61.55		. . Wheel hub spring biased type
61.56		. . . With radially extending operator (e.g., horn ring)
61.57		. . On or in wheel rim
61.58R		. Actuated concurrently with operation or use of art device
61.59		. . Article inserted type (e.g., pencil sharpener)
61.6		. . Coupling of fluid conduit
61.61		. . Drawer
61.62		. . Closure, closure operator or accessory
61.63		. . . Letter slot or box
61.64		. . . Lock, bolt or keeper actuated
61.65		. . . . Elevator bar lock type
61.66		. . . . Improper key or mere presence of key in lock
61.67		. . . . By movement of bolt
61.68		. . . . . In keeper
61.69		. . . Plural closures or plural closure cycles
61.7		. . . Hinge member actuated
61.71		. . . Sliding closure
61.72		. . . . Closure-dragged switch actuator
61.73		. . . . Abutment type switch actuator
61.74		. . . . Spring-biased switch actuator
61.75		. . . . . With modified closure
61.76		. . . Spring-biased switch actuator
61.77		. . . . Pull chain operator
61.78		. . . . Spring contact
61.79		. . . . Manually disabled
61.8		. . . . Manually reset
61.81		. . . . Mounted on closure frame or enclosure wall
61.82		. . . . . In recess
61.83		. . . Gravity actuated
61.84		. . . Window accessory (e.g., shades and blinds)
61.85		. . Manipulating, operating or carrying handle
61.86		. . . For fluid controlling valve
61.87		. . . Hand brake lever
61.88		. . . Gear shift lever
61.89		. . Vehicle pedal
61.9		. . . Engine governed over-riding means
61.91		. . Transmission controlled
61.58B		. . Seat belt
61.93		. Anti-intrusion type
52A		. Tilting vehicle operated
		SNAP
400		CONTACT MOVED BY SUDDEN RELEASE OF STORED ENERGY, (E.G., SPRING CHARGER)
401		TOGGLE MECHANISMS
402		SNAP
403		. Mercury snap
404		. Magnetic snap
405		. Double snap
406		. . Including raised flexible snap element (e.g., dome)
407		. . Blade element stressed to twisted configuration
408		. . Spring Buckle
409		. . . Spring compressed between two points at a fixed distance from each other
410		. . Rotating contact
411		. . . Contact movement blocked until spring is charged (e.g., latch)
412		. . . . Push button actuated
413		. . . . Pull cord actuated
414		. . . . Including radial motion
415		. . . Contact restrained until spring is charged (e.g., detent)
416		. . . Cam actuated contact
417		. . . . Push button actuated
418		. . . . Pull cord actuated
419		. . . Ratchet controlled
420		. . . . Pull cord actuated
421		. . . . Pawl carries contact
422		. . . . . Push button actuated
423		. . . . . Pull cord actuated
424		. . Contact movement is blocked until spring is charged
425		. . . Blocked by distinct latch
426		. . . . Driving and driven element oscillate about a common axis
427		. . . . . With reciprocating contact
428		. . . . Including cam or wedge release
429		. . . . Including reciprocating contact
430		. . Contact movement is restrained until spring is charged (e.g., detent)
431		. . Cam or wedge release
432		. . . Roller contact acts as cam
433		. . . Contact slides over pivot point
434		. . . Reciprocating contact
435		. . . . Contact carrier snaps in opposite direction from actuator
436		. . . Including lost motion coupling to cam
437		. . . Spring biased element slides over pivoted element
438		. . . Spring biased pivoted element snapped when cam follower crossed pivot
439		. . . Wedge on reciprocating actuator
440		. . With mechanism to insure positive separation of contacts (i.e., positive kick)
441		. . . Contact moved by separate lever
442		. . . Actuator moves contact near limit of travel
443		. . Contact driven by impact element
444		. . . Having weight drive
445		. . Snap spring system using multiple diverse springs
446		. . Systems having lost motion connections between the actuator, an intermediate snapped element and the contact
447		. . Double ended type (e.g., reciprocating bridging contacts)
448		. . . Contact pivots moved by actuator
449		. . Reciprocating contacts
450		. . . Compression spring type
451		. . End of blade pivotally carries element compressing blade
452		. . Both ends of blade are freely floating
453		. . Compression spring (e.g., push force)
454		. . . Both ends of spring move
455		. . . . Having roller contact
456		. . . . Both ends of spring are carried by blade (e.g., leaf spring)
457		. . . . Axially compressed coil spring
458		. . . . One end of spring is carried by actuator
459		. . . One end of spring is fixed
460		. . . . Central portion of spring is moved to cause snap
461		. . . . Blade is moved to cause snap
462		. . Tension spring (e.g., pull force)
463		. . . Contact pivot point is moved to cause snap
464		. . . . Pivot point is carried by actuator
465		. . . Both ends of spring move
466		. . . . One end of spring is carried by actuator
467		. . . One end of spring is fixed
468		. Single snap
469		. . Including lost motion coupling to cam
470		. . Contact movement is blocked by latch until spring is charged
471		. . Contact restrained before snap spring is charged (e.g., detent)
472		. . . Detent function performed by spring biased contact (e.g., knife blade)
79		SUSPENDED-WIRE CONTROLLED
80R		CENTRIFUGAL
80A		. Liquid contact
80B		. Reed-type contact
81R		FLUID PRESSURE
81.4		. Plural switch
81.5		. With plural operators
81.6		. Operable to cause liquid contact flow
81.8		. Bourdon tube type
81.9R		. Flow-responsive type
81.9M		. . Magnet
81.9HG		. . Mercury
82R		. Piston
82B		. . High voltage
82C		. . Micro-switch
82D		. . Automobile
82DA		. . . Starter
82A		. . Adjustable piston stroke
82E		. . Magnet
83R		. Diaphragm
83WM		. . Washing machine
83A		. . Differential pressure
83B		. . Special diaphragm
83C		. . Aneroid bellows
83D		. . Differential and plural bellows
83F		. . Liquid contact
83J		. . Piston and diaphragm
83L		. . Magnetically operated
83N		. . Contacts on diaphragm
83P		. . Snap action
83Q		. . Combined switch and valve actuator
83S		. . Adjustment means
83SA		. . . Differential and range adjustment
83T		. . Time delay
83V		. . Miniature
83Y		. . Multiple diaphragms or multi-ply diaphragms
83W		. . Overpressure protection means
83Z		. . Manual actuating means
81H		. Hand operated
84R		FLOAT
84A		. Battery float switch
84B		. Float and pressure
84C		. Magnet
85R		WEIGHT
86R		. Treads
86A		. . Roadway
85A		. Seat operated
		Class 218 is an integral part of this Class (Class 200), as shown by the position of this box, and follows the schedule hierarchy of this Class, retaining all pertinent definitions and Class lines of this class.
86.5		FOOT OPERATED
182		LIQUID CONTACT
183		. Combined
184		. . With illumination means
185		. . With electrical resistance
186		. Time delay
187		. Plural switches (in same housing)
188		. . With common electrical connection (solid or liquid)
189		. . Progressive contacts
190		. Liquid level responsive
191		. Having capillary tube means
192		. . With electro-capillary action
193		. Having electrolytic conductive-liquid means
194		. . With significant electrolyte
195		. Spray or jet by centrifugal force and/or by other pressure-producing means
196		. . Periodic
197		. . . Oscillating jet
198		. . . Contact dips (moves relative to container) into the conductive liquid
199		. Contact dips (moves relative to container) into the conductive liquid
200		. . Periodic
201		. . . Progressive contacts
202		. . . Cam actuated
203		. Cam actuated
204		. . Gyratory movement
205		. . Periodic
206		. . . Plural switches (switches not in same housing)
207		. . . Eccentric switch movement (wobble)
208		. Periodic
209		. Piston or plunger means
210		. . Contact attached to or unitary with piston or plunger
211		. Pressure-deformable (flexible) means
212		. . With progressive contacts
213		. . With movably attached contact means
214		. With movable liquid-separating or shifting means
215		. With external support or external housing
216		. . With hermetic or resin sealing
217		. . Dual function support
218		. . . With actuator securing means
219		. . With actuation means
220		. Tiltable or rotatable
221		. . Container has plural major conductive-liquid containing chambers or spaces connected by a passageway
222		. . . Container forms at least one contact
223		. . Having position sensitive ring, disk or conical contact
224		. . Multi-throw or multi-position
225		. . . Single pole-double throw
226		. . Container forms at least one contact
227		. . . Chamber contains insulative restrictive element or means to form at least one conductive-liquid-containing recess
228		. . Chamber contains insulative restrictive element or means to form at least one conductive-liquid-containing recess
229		. . Container includes at least one integral recess
230		. . Float actuated
231		. . With significant contact-sealing means
232		. . With anti-splash means
233		. Particular conductive liquid
234		. . Having contact wetting agent
235		. Particular contact structure or material
236		. . Mounting or attaching means
500		HELICAL DRIVE MECHANISM
501		GEAR DRIVEN
502		SOLID CONTACT
503		. Rolamite-type
504		. Coaxial switch
505		. Hand held squeeze actuated switch
506		. Interposed nonconductor
507		. Screw used as moving contact
508		. Both contacts are moved
509		. Bimodal (e.g., single stroke make/break-no make on return)
510		. . Push button actuator
511		. Compressible elastomer
512		. Membrane type
513		. . Specific dome shape
514		. . Specitic nonconductive materials
515		. . Pressure equalizing means
516		. . Including auxiliary dome/disc type spring
517		. . Including additional actuator
518		. Plural actuators operate single switch
519		. Push and/or pull with 3 or more positions
520		. Push button operated
521		. . Including tactile feedback mechanism
522		. . Trigger actuator
523		. . Including alternate action mechanism (e.g., push-push)
524		. . . With heart-shape cam
525		. . . With w-shape rocking element
526		. . . With rotating member (e.g., ball point pen type)
527		. . . . Including rotating contact
528		. . . . Rotating cam moves contact
529		. . Mechanism to transfer reciprocating to rotary or rocking
530		. . Contact carried by push button
531		. . . Sliding contact
532		. . . Leaf spring contact
533		. . Cam actuated contact
534		. . Abutting contact
535		. . . Leaf spring contact
536		. . Sliding contact
537		. Reciprocating actuator
538		. . Push/pull rod
539		. . . Specific detent structure
540		. . . Contact carried by rod
541		. . . . Sliding contact
542		. . . Cam actuated contact
543		. . Pull cord
544		. . . Rotating contact
545		. . . Cam actuated contact
546		. . . Leaf spring contact
547		. . Slide switch (handle projects perpendicular to motion)
548		. . . Housing and actuator form detent
549		. . . Contact carried by slide
550		. . . . Sliding contact
551		. . . Cam actuated contact
552		. . Two button switches - (noncoaxial parallel buttons)
553		. Rocking actuator (e.g., rocker, lever)
554		. . Knife blade contact
555		. . . With catch
556		. . Housing and actuator form detent
557		. . Actuator biasing mechanism
558		. . Cam actuated contact
559		. . . Leaf spring contact
560		. . Rotating contact
561		. . Reciprocating contact in straight-line motion
562		. . Contact carried by actuator
563		. . . Sliding contact
564		. Rotating actuator (e.g., dial)
565		. . Housing and actuator form detent
566		. . Auxiliary motion required to actuate or release (e.g., push to rotate)
567		. . Rotation about a longitudinal axis of tool or appliance
568		. . Contact actuated by cam
569		. . . Leaf spring contact operated by cam on actuator
570		. . Rotating contact
571		. . . Sliding contact
572		. . Linear moving contact
573		CAM OPERATES CONTACT OR MICROSWITCH
574		. Peripheral cam
237		ELECTRIC SWITCH DETAILS
238		. Contact
239		. . Abutting type
240		. . . With subsequent rolling
241		. . . With subsequent sliding
242		. . . . Having contact cleaning structure
243		. . . Bridging contacts
244		. . . With rigid pivoted member carrying the moving contact
245		. . . With resilient mounting
246		. . . . With spring blade support
247		. . . . Within supporting guides
248		. . . Self-aligning contacts
249		. . . Having contact adjusting means
250		. . . Having biasing means
251		. . . . Means for adjusting contact pressure
252		. . Sliding type
253		. . . Having contact cleaning structure
253.1		. . . Plug type contacts
254		. . . Knife and clip contacts
255		. . . . Having biasing means
256		. . . . . Means for adjusting contact pressure
257		. . . With resilient mounting
258		. . . Self-aligning contacts
259		. . . Having contact adjusting means
260		. . . Having biasing means
261		. . . . Means for adjusting contact pressure
262		. . Material
263		. . . Cooperating contacts of different material
264		. . . Infiltrated porous substance
265		. . . Compositions
266		. . . Alloys
267		. . . One layer (i.e., additional to its mounting)
268		. . . Two layers
269		. . . Three layers or more
270		. . . Elements
271		. . Blade or pole-plate
272		. . . With support
273		. . . Rotary
274		. . . . With support
275		. . Particular shape or structure of the contact
276		. . . Coil spring contact
276.1		. . . . With push button actuator
277		. . . Roller contact
277.1		. . . . With push button actuator
277.2		. . . . With rocker actuator
278		. . . Laminated
279		. . . Contact making surface (e.g., grooved)
280		. . Interchangeable and reversible
281		. . Replaceable or renewable
282		. . Spring clip
283		. . Leaf spring support
284		. . Integral contact and terminal structure
285		. . Lubricated
286		. . Adjustment means
287		. . . Self-adjusting
288		. . Buffer, rebound preventing
289		. . Cooler
290		. . Spring biasing means
291		. . Detent
292		. . Printed circuit
293		. Cases and bases
293.1		. . Unitary switch mounted in handle or handgrip
294		. . Surface
295		. . With flexible mounting means
296		. . Panel
297		. . Outlet box
298		. . Pendant
299		. . . With lamp socket
300		. . Frangible element
301		. . Vibration dampening means
302.1		. . Dust, dirt, or moisture excluding
302.2		. . . Seal for push button actuator
302.3		. . . Seal for rocker or lever actuator
303		. . Split housing
304		. . With shield
305		. . . Electrical shield
306		. . Venting means
307		. . Stacked
308		. Indicators
309		. . Interchangeable inserts
310		. . Illuminated
311		. . . Having light-filtering means
312		. . . Having additional indicating means
313		. . . Light visible through actuator
314		. . . . Push button type
315		. . . . Rocker or toggle
316		. . . . Rotatable
317		. . . Light visible through housing
318		. Latches
318.1		. . Mechanism to hold push button down
318.2		. . . Auxiliary motion of actuator required to release (e.g., turn or slide)
319		. . Shockproof
320		. . Plural latches
321		. . Manually operated latching means
322		. . . Plate or lever
323		. . Self-operating latching means
324		. . . Cam (plate, lever, etc.)
325		. . . . Spring biased
326		. . . Gravity operated
327		. . Positioning or stop member
329		. Actuators
330		. . Auxiliary
331		. . . Extension or remote
332		. . . Lever
332.1		. . . Having auxiliarly housing
332.2		. . . . Housing is a handle or handgrip for tool or appliance
333		. . Covers
334		. . Safety
335		. . Lever
336		. . Rotatable
337		. . With linkages
338		. . With attachment
339		. . Rocker
341		. . Push button
342		. . . Including lost motion connection
343		. . . Hinged button (e.g., piano key)
344		. . . Mechanism to keep key level
345		. . . Cap/stem and stem/housing details
		*****************************
		DIGESTS
		*****************************
DIG 2		Body attached switches
DIG 3		Coin operated
DIG 4		High potential type insulation
DIG 5		Fluid pressure: fluid amplifier
DIG 6		Tie bar
DIG 7		Molded drum
DIG 8		Disturbance
DIG 9		Momentum
DIG 10		Curb, bumper and fender
DIG 11		Web or thread actuated
DIG 12		Burglar screens
DIG 13		Shaft bearing and armature wear indicator switches
DIG 14		Rail or leak indicator
DIG 15		Bin alarm
DIG 16		Gas detector
DIG 17		Gas engine and motor vehicle
DIG 18		Gravity
DIG 19		Gyroscope
DIG 20		Sound and vibration operated
DIG 21		Pencil, counter or dispenser operated
DIG 22		Strain relief, shear pin
DIG 23		Game
DIG 24		Plug holder
DIG 26		Slack cable operated
DIG 27		Thermal magnetic snap
DIG 28		Thermal spring snap
DIG 29		Ball
DIG 30		Fluid conductor
DIG 31		Fluid flow
DIG 32		Speed responsive
DIG 33		Speed synchronizing switch
DIG 34		Recording and reproducing
DIG 35		Weight operated tread/treadless switch
DIG 36		Light operated switches
DIG 37		Hose
DIG 38		Money till drawer operated
DIG 39		Motor vehicle-steering column
DIG 40		Moisture
DIG 41		Liquid contact
DIG 42		Contact welding considerations
DIG 43		Fluid-operated matrix switches
DIG 44		Lubrication-periodic switches
DIG 46		Separators and/or insulators for stacked leaf spring contacts
DIG 47		Light guides for switch indicators (prisms, reflectors, cables, etc.)

Information Products Division -- Contacts

Questions regarding this report should be directed to:

U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231

tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov

---

Last Modified: 6 October 2000