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

Class
187
ELEVATOR, INDUSTRIAL LIFT TRUCK, OR STATIONARY LIFT FOR VEHICLE

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		===> ELEVATOR, INDUSTRIAL LIFT TRUCK, OR STATIONARY LIFT FOR VEHICLE
200		STAIRWAY ASSIST FOR INDIVIDUAL OR MINOR BARRIER (E.G., CURB) LIFT FOR IMPAIRED INDIVIDUAL
201		. Mounted adjacent stairway for travel parallel thereto
202		. . Having specific means contacting or on load support for stopping thereof
203		STATIONARY LIFT FOR ROADWAY VEHICLE OR REQUIRED COMPONENT THEREOF
204		. With distinct jack on vehicle support
205		. With floor pit opening for support and safety cover therefor
206		. With safety prop or braking rod for support
207		. Having position lock for engaging sustaining drive means or guide means of support
208		. . Ratchet bar and latching pawl-type lock
209		. With safety cutoff for drive means
210		. Having specific drive means for support
211		. . Includes plural sustaining levers (e.g., Scissored levers)
212		. . Powered by vehicle being lifted
213		. . Includes driven sustaining columns on opposite sides of support
214		. . . Having threaded rider and mating screw
215		. . Includes sustaining fluid ram
216		. Having specific vehicle support structure (e.g., trackways)
217		. . With movable stop engaging vehicle wheel
218		. . Includes portion positioned or shaped to engage axle or undercarriage
219		. . . Portion adjusts to plural use positions
220		. . . Portion moves from use to nonuse configuration (e.g., alternate supports)
221		. . Includes auxiliary or adjustably spaced trackway
222		INDUSTRIAL LIFT TRUCK OR REQUIRED COMPONENT THEREOF (E.G., FORKLIFT)
223		. Having safety cutoff control
224		. Having control for load support drive-means
225		. Having foldable vertical guide
226		. Having extensible vertical guide for load support
227		. . Guide or drive-means therefor positioned to enhance operator visibility
228		. . And guiding means for fluid drive line
229		. . Extended by single fluid ram
230		. . Specific vertical guide
231		. Having structure allowing propulsion or steering by walking attendant
232		. . With stabilizing outrigger
233		. Having specific drive-means for load support
234		. . Including fluid ram
235		. . Including cable accumulating-type drum
236		. . Including gear and mating rack or chain
237		. Having specific load support structure (e.g., forks)
238		. Having specific guide means for load support
239		MOUNTED ON EXTERIOR OF BUILDING
240		TRANSPORTABLE ELEVATOR
241		. Nonself supporting-type (e.g., leaned against building)
242		. Knockdown or collapsible for transport
243		. . Wheel supported
244		. Wheel supported
245		INCLINED ELEVATOR
246		. Having linking cable tension change actuated stopping means for load support
247		HAVING COMPUTER CONTROL OF ELEVATOR
248		. Includes redundant circuitry
249		HAVING INDEPENDENT SUPPORTS CARRYING DISTINCT LOADS AND SHARING COMMON PATH
250		HAVING SPECIFIC LOAD SUPPORT DRIVE-MEANS OR ITS CONTROL
251		. Includes linking support cable (e.g., rope, chain) in drive-means
252		. . And reciprocatingly shifted pulley wheel pulling thereon
253		. . . Shifted by fluid ram
254		. . And rotatably driven drum pulling thereon
255		. . . With projections or apertures for engaging complementary formations on cable (e.g., sprocket)
256		. . . Plural driven drums
257		. . . . Each moves distinct load support
258		. . . . Having distinct drive motors
259		. . . . Cable accumulating-type drums
260		. . . . Different size drums
261		. . . Cable accumulating-type drum
262		. . . . Having cable guiding pulley wheel spaced therefrom
263		. . . With structure adapting drum for manual drive
264		. . . With separate biasing means maintaining cable tension
265		. . . . Includes spring supported pulley
266		. . . Having cable guiding pulley wheel spaced therefrom
267		. Includes threaded rider mating with support screw in drive-means
268		. . Driven rider
269		. Includes scissored supporting levers in drive-means
270		. Includes gear on support mating with stationary rack or chain
271		. . Worm-type gear
272		. Includes fluid supporting ram in drive-means
273		. . Pneumatic (e.g., steam)
274		. . Plural fluid rams having interrelated operation
275		. . With fluid flow controlling means
276		. Includes control for power source of drive-means
277		. . With specific electrical component
278		. . . Actuated by movement of building (e.g., seismic activity)
279		. . . Actuated by presence of obstruction in shaft
280		. . . Actuated by location of access barrier or its lock
281		. . . Actuated by excessive load
282		. . . Actuated by load support contacting trip in shaft
283		. . . . Having trip at each of plural landings
284		. . . . . And means for final leveling
285		. . . For fluid-type power source
286		. . . . Actuated by load support speed sensor or governor
287		. . . Includes safety cut off switch actuated by load support speed sensor or governor
288		. . . Control actuates mechanical braking means for power source
289		. . . For electric power source
290		. . . . With auxiliary supply of electricity
291		. . . . Having means for final leveling
292		. . . . With means for stopping vibration or bump start
293		. . . . Controls power source speed
294		. . . . . Actuated near terminus of shaft
295		. . . . . Having control signal pattern generator
296		. . . . . Limited to power source (i.e., motor) utilizing A.C. power
297		. . . . . Limited to power source (i.e., motor) utilizing D.C. power
298		. . . . Actuated by human operator engaging specific input part
299		. . . . . With means locking input part of control against movement
300		. . Actuated by presence of obstruction in shaft
301		. . Actuated by location of access barrier or its lock
302		. . Actuated by load support contacting trip in shaft
303		. . . Having trip at each of plural landings
304		. . . . Trip supported on or formed by cable
305		. . Actuated by load support speed sensor or governor
306		. . Actuated by human operator engaging specific input part
307		. . . With means for locking input part of control against movement by operator
308		. . . . Actuated by position or movement of access barrier or its position lock
309		. . . . . Having barrier position lock operable only when load support or control input part safely positioned
310		. . . . . . With common actuation of barrier position lock and input part locking means
311		. . . Using cable to transmit input
312		. . . . Running cable type
313		WITH BARRIER FOR REGULATING ACCESS TO LOAD SUPPORT
314		. Operation variable for emergency, maintenance, or abnormal condition
315		. Includes motor or motor driven linkage for shifting barrier
316		. . With specific electrical control therefor
317		. . . Includes object detecting sensor or switch on barrier
318		. . Shifts barrier mounted at landing
319		. . . Through coupling with barrier on load support
320		. . . Plural interconnected motors shift barriers at different landings
321		. . . Motor stationarily mounted and linkable to barriers on different landings
322		. . . . Includes rotating shaft extending between landings
323		. . . Nonelectric motor
324		. . Shifts sliding barrier on load support
325		. Including barrier mounted at landing
326		. . Barrier shifted by drive-means powered by motion of load support
327		. . . Having endless driving belt in drive-means
328		. . . Having rotatably driven drum and cable pulled thereby in drive-means
329		. . . Having cable and guiding pulley therefor in drive-means
330		. . With means to couple to barrier on load support
331		. . With position lock therefor
332		. . Collapsible or rollable type
333		. . Slideably mounted
334		. Including slideably mounted barrier on load support
335		. . With position lock therefor
336		WITH CLOSURE MEANS FOR SHAFT OPENING THROUGH LANDING
337		. Including pivoted closure
338		. . Shifted by drive-means powered by load support motion
339		. . With closure latching means
340		. Including transversely sliding closure
341		. . Shifted by drive-means powered by load support motion
342		. Including closure bodily carried along shaft by load support
343		HAVING MEANS CUSHIONING CONTACT OF LOAD SUPPORT WITH TERMINUS OF SHAFT
344		. Fluid resistance or shock absorber-type means
345		HAVING FLUID DAMPENING MEANS REGULATING LOAD SUPPORT MOVEMENT
346		. With fluid coacting portion carried by load support
347		. Includes piston and cylinder attached to support by cable
348		WITH EMERGENCY RUNNING SUSPENSION CABLE FOR LOAD SUPPORT
349		WITH CONDITION ACTUATED MEANS RELEASING LOAD SUPPORT FROM DRIVE-MEANS
350		HAVING MEANS ENGAGING CABLE ATTACHED TO LOAD SUPPORT, OR ITS GUIDE, TO SLOW LOAD SUPPORT
351		HAVING SPECIFIC MEANS CONTACTING OR ON LOAD SUPPORT FOR STOPPING OR SLOWING THEREOF
352		. Includes gear on support mating with stationary rack
353		. . Worm-type gear
354		. Means actuated by access barrier movement
355		. . And having movable contact component carried by support
356		. Stationarily mounted and having disparate movable contact component
357		. . Mounted only at landings or terminus of shaft
358		. . Having drive-means for component powered by load support motion
359		. Includes movable contact component on support for engaging shaft structure
360		. . Interlocking only with structure of landings or terminus of shaft
361		. . Actuated by change in suspension or counterweight cable tension
362		. . . And shaped to cut into cooperating structure
363		. . . And interlocking with complementary stationary formation (e.g., catches)
364		. . . . Slidably mounted contact component
365		. . . . . Slides perpendicular to path of support
366		. . . . Plural pivotally attached gripping contact components engaging common rail
367		. . . Pivotally attached contact component
368		. . . . With eccentric camming face
369		. . . . . Having similar contact component cooperating to grip common rail
370		. . . . Plural gripping contact components engaging common rail
371		. . . Slidably mounted contact component
372		. . . . Having wedge shape or sliding along incline
373		. . Actuated by load support speed governor or sensor
374		. . . Pivotally attached contact component
375		. . . . Plural gripping contact components engaging common rail
376		. . . Slidable contact component having wedge shape or sliding along incline
377		. . Actuated by human operator
378		. . . And interlocking with complementary stationary formation
379		. . . Pivotally attached contact component
380		WITH CALL REGISTRATION MEANS
381		. Having call cancel or refuse feature
382		. Shared by plural load supports
383		. . Assigns load supports to zones
384		. . Having security or priority preemption feature
385		. . Dispatches load supports from designated landing
386		. . . Frequency based on interval of time
387		. . Assigns calls to load supports on predetermined basis
388		. Also directs response
389		. Includes specific floor selector
390		ALARM SYSTEM
391		WITH MONITORING, SIGNALLING, AND INDICATING MEANS
392		. Monitors passengers
393		. Monitors operational parameter
394		. . Load support position
395		HAVING CALL BUTTON WITH INDICATOR
396		GENERAL INFORMATION DISPLAY (E.G., STORE DIRECTORIES)
397		WITH VISUAL INDICATOR OF MOVEMENT OF LOAD SUPPORT
398		. Indicates particular one of plural load supports responding
399		. Indicates existing location
400		WITH SAFETY OR SEALING MEANS FOR GAP BETWEEN LOAD SUPPORT AND LANDING
401		HAVING SPECIFIC LOAD SUPPORT STRUCTURE OR ARRANGEMENT (E.G., CAR FRAMING)
402		. Arranged to carry masonry hod
403		. With means for engaging wheels of carried vehicle
404		HAVING SPECIFIC COUNTERBALANCE MEANS FOR LOAD SUPPORT
405		. Includes variable weight
406		HAVING SPECIFIC STATIONARY GUIDING STRUCTURE FOR COUNTERBALANCE MEANS OR LOAD SUPPORT
407		. Formed from cable
408		. And mounting means therefor
409		HAVING SPECIFIC GUIDE SHOE
410		. With roller
411		HAVING SPECIFIC FORCE TRANSMITTING CONNECTION FOR COUNTERWEIGHT OR LOAD SUPPORT
412		. Equalizes tension in, or length of, plural linking cables
413		HAVING SPECIFIC ARRANGEMENT OR CONNECTION OF ELECTRICAL OR FLUID SERVICE LINE
414		MISCELLANEOUS
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		CROSS-REFERENCE ART COLLECTIONS
		*********************************
900		TEMPORARY CONSTRUCTION ELEVATOR FOR BUILDING
901		CONTROL MODIFIED FOR USE BY DISABLED INDIVIDUAL
902		CONTROL FOR DOUBLE-DECKER CAR

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tel: (703) 306-2600
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Last Modified: 6 October 2000