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.

Patents classified in a subclass may be accessed by clicking on the " " icon following the subclass number, below.

( please note that links to definitions and classified patents may not be available for some classes and subclasses )

For search strategies, please refer to the Classification Index Explanation of Data web page.

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