US2495573A - Motor attachment for wheel chairs - Google Patents

Motor attachment for wheel chairs Download PDF

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Publication number
US2495573A
US2495573A US54290A US5429048A US2495573A US 2495573 A US2495573 A US 2495573A US 54290 A US54290 A US 54290A US 5429048 A US5429048 A US 5429048A US 2495573 A US2495573 A US 2495573A
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Prior art keywords
chair
motor
platform
wheel
coupling
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Expired - Lifetime
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US54290A
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Duke Samuel
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Priority to US54290A priority Critical patent/US2495573A/en
Priority to GB11606/49A priority patent/GB665928A/en
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A61G5/047—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven by a modular detachable drive system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
    • A61G5/0816—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair
    • A61G5/0825—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair comprising a scissor-type frame, e.g. having pivoting cross bars for enabling folding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1051—Arrangements for steering
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1054—Large wheels, e.g. higher than the seat portion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/0528—Steering or braking devices for castor wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00—General characteristics of devices
    • A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
    • A61G2203/14—Joysticks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S180/00—Motor vehicles
    • Y10S180/907—Motorized wheelchairs

Definitions

  • a further object is to provide a self-propelled wheel chair having easy riding qualities, that is adapted for indoor or outdoor use and in which the chair, preferably of the folding type, may be collapsed with motor detached and transported in an automobile and instantly assembled for use at the point of destination.
  • a further object is to provide a self-propelled wheel chair preferably operated by an electric motor serviced by a battery that may be readily charged from the house current.
  • the instant propelling mechanism is designed for ready ap plication to wheel chairs of practically any type but particularly adapted to the chair set forth in my United States Patent No. 2,354,949 granted August 1, 1944.
  • Fig. 1 is a view in side elevation of the instant self-propelled wheel chair.
  • Fig. 2 is a view of the chair in front elevation.
  • Fig. 3 is a rear view of the chair shown in Fig. 1.
  • Fig. 4 is a top plan View of Fig. 1.
  • Fig. 5 is a plan view, enlarged, of the motor attachment showing its application, taken on the line 5-5 of Fig. 3.
  • Fig. 6 is a side elevational view of Fig. 5.
  • Fig. 7 is an end View of Fig. 5.
  • Fig. 8 is a fragmentary detail vertical sectional view taken through Fig. 6 on the line 88.
  • Fig. 9 is a fragmentary plan view of the starting and steering means and connections.
  • Fig. 10 is a side elevational view of Fig. 9.
  • Fig. 11 is a front View of Fig. 10, and,
  • Fig. 12 is a diagrammatic View of the electric circuit.
  • the reference numeral I denotes the structure which includes upper and lower frame bars or tubes 2, 3, the back 4, seat 5, the rear wheels 6 and front Wheels
  • the upper tubular frame 'members or chair arms 2 are connected to the lower members 3 by the rear frame bars 8 and front vertical frame bars 9 that telescopically engage the sleeves an to which the supports H are secured that carry the foot rests l 2.
  • a steering post 53 is connected by brackets l4, I5 respectively to a frame bar 9 and sleeve In, said post l3 connected by link Hi to a front wheel I, said post at its upper end provided with the operating or steering handle IT.
  • a control button I8 operatively carried by the post 13 is connected by electrical conductor l9 passing through the post to the starter 20 connected to the motor 2
  • a sheave 33 preferably larger than sheave 30 and also fast upon shaft 3
  • brackets 31, 31 that operatively support the rotary shaft 38 retained in adjusted position by the adjustable stop collars 39 on said shaft, said shaft formed with a depending stem 40 centrally disposed and connected by the ball bearing coupling 40a to the central section 4
  • the remote ends of the coupling terminal sections are connected by U- bolts 49 to the chair frame lower side members 3.
  • the chair occupant may rest his arm upon the right side chair arm 2 while manually grasping the steering handle I! and with one finger he may gentl depress the button [8 to start the motor and continue same in operation at the speed desired while guiding the chair, the motor through the connections to the traction wheel 2! impelling the chair over the floor or walk.
  • the coupling sections 4!, 42, 43 permit the application of the attachment to chairs of different widths and the ball bearin connection 40a and shaft 38 supported for rotary movement permit the attachment to readily follow the floor or walk topography with maximum traction and without imparting appreciable jar or jolt to the chair.
  • the connection of the attachment to the chair is solely by means of the U-bolts 49 engaging the frame bars 3 so that application of the attachment to or detachment of same from the chair is very readily accomplished.
  • a motor attachment for wheel chairs a platform, a traction wheel supporting said platform, a motor upon said platform operatively connected to said traction wheel, a rotary shaft secured to and depending from said platform, a sectional adjustable coupling, readily removable means for securing said coupling to the wheel chair, a ball bearing connection between said rotary shaft and said coupling, and starting and control means for said motor secured to the chair in proximity to an occupant thereof, said means including a control button.
  • a motor attachment for wheel chairs having steering means including a steering post and handle therefor, a platform, a traction wheel 4 supporting said platform, a motor upon said platform operatively connected to said traction wheel, a rotary shaft secured to and depending from said platform, a coupling comprising central and terminal sections adjustably connected together, connection between said terminal sections and the chair, a ball bearing connection between said rotary shaft and said coupling, and starting and control means for said motor associated with said steering post, said means including a button on said handle.
  • a platform a traction wheel supporting said platform, a motor upon said platform operatively connected to said traction wheel, a. rotary shaft operatively carried by and depending from said platform, a sectional coupling disposed below said rotary shaft, terminal sections of said coupling releasably secured to the chair, ball bearing connection between said rotary shaft and one section of said coupling, "and starting and control means for said motor carried by the chair.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Nursing (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Handcart (AREA)

Description

Jam, 24, ili s. DUKE MOTQR ATTACHMENT FOR WHEEL CHAIRS 3 Sheets-Sheet 1 Filed Oct. 15, 1,948
94 g 5zz/mz $532 2 BY Z W Jam 24%, W@ s. DUKE 294959573 MOTOR ATTACHMENT FOR WHEEL CHAIRS Filed .Oct. 13, 1.948
3 Sheets-Sheet 2 MOTOR ATTACHMENT FOR WHEEL CHAIRS 3 Sheets-Sheet 3 Filed; Oct. 13, i948 atented Jan. 24,. 1950 UNITED STATES PATENT OFFI CE 2,495,573 MOTOR ATTACHMENT FOR. WHEEL CHAIRS Samuel Duke, Chicago, I11.
I Application October 13, 1948, Serial No. 54,290
3 Claims.
operator.
A further object is to provide a self-propelled wheel chair having easy riding qualities, that is adapted for indoor or outdoor use and in which the chair, preferably of the folding type, may be collapsed with motor detached and transported in an automobile and instantly assembled for use at the point of destination.
A further object is to provide a self-propelled wheel chair preferably operated by an electric motor serviced by a battery that may be readily charged from the house current. The instant propelling mechanism is designed for ready ap plication to wheel chairs of practically any type but particularly adapted to the chair set forth in my United States Patent No. 2,354,949 granted August 1, 1944.
More specifically my invention resides in the arrangement arid combination of parts and in the details of construction described in the specification and particularly pointed out in the appended claims. It is understood that I do not limit myself to the precise embodiment of the invention herewith as various changes may be made within the scope of what is claimed without departing from the spirit of the invention. I intend no limitations other than thoseimposed by the claims.
In the drawings:
Fig. 1 is a view in side elevation of the instant self-propelled wheel chair.
Fig. 2 is a view of the chair in front elevation.
Fig. 3 is a rear view of the chair shown in Fig. 1.
Fig. 4 is a top plan View of Fig. 1.
Fig. 5 is a plan view, enlarged, of the motor attachment showing its application, taken on the line 5-5 of Fig. 3.
Fig. 6 is a side elevational view of Fig. 5.
Fig. 7 is an end View of Fig. 5.
Fig. 8 is a fragmentary detail vertical sectional view taken through Fig. 6 on the line 88.
Fig. 9 is a fragmentary plan view of the starting and steering means and connections.
Fig. 10 is a side elevational view of Fig. 9.
Fig. 11 is a front View of Fig. 10, and,
Fig. 12 is a diagrammatic View of the electric circuit.
The reference numeral I denotes the structure which includes upper and lower frame bars or tubes 2, 3, the back 4, seat 5, the rear wheels 6 and front Wheels The upper tubular frame 'members or chair arms 2 are connected to the lower members 3 by the rear frame bars 8 and front vertical frame bars 9 that telescopically engage the sleeves an to which the supports H are secured that carry the foot rests l 2. A steering post 53 is connected by brackets l4, I5 respectively to a frame bar 9 and sleeve In, said post l3 connected by link Hi to a front wheel I, said post at its upper end provided with the operating or steering handle IT.
A control button I8 operatively carried by the post 13 is connected by electrical conductor l9 passing through the post to the starter 20 connected to the motor 2| connected by electrical conductor 22 to the battery 23 connected by the conductor 24 to the button l8 which when manually depressed slightly energizes the starter and when further depressed accelerates the motor. The motor 2! and battery 23 are mounted to the platform 25 having secured thereto the depending bracket 26 that carries the twin type rubber tired traction wheel 21 that is driven by the belt 28 passing through a perforation 29 in the platform to and about the sheave 30 fast upon transmission shaft 3| journaled in brackets 32 carried by the platform, a sheave 33 preferably larger than sheave 30 and also fast upon shaft 3| being connected by drive belt 34 to sheave 35 fast upon the motor shaft 35.
Depending from opposite ends of the platform are brackets 31, 31 that operatively support the rotary shaft 38 retained in adjusted position by the adjustable stop collars 39 on said shaft, said shaft formed with a depending stem 40 centrally disposed and connected by the ball bearing coupling 40a to the central section 4| of the adjustable sectional coupling 4l, 42, 43, the section 4! formed near its ends with elongated slots 44 connected by bolts 45 and nuts 46 to the ends of the terminal coupling sections 42 and 43 formed respectively with the elongated slots 41, 48 receiving said bolts. The remote ends of the coupling terminal sections are connected by U- bolts 49 to the chair frame lower side members 3.
In operation the chair occupant may rest his arm upon the right side chair arm 2 while manually grasping the steering handle I! and with one finger he may gentl depress the button [8 to start the motor and continue same in operation at the speed desired while guiding the chair, the motor through the connections to the traction wheel 2! impelling the chair over the floor or walk. The coupling sections 4!, 42, 43 permit the application of the attachment to chairs of different widths and the ball bearin connection 40a and shaft 38 supported for rotary movement permit the attachment to readily follow the floor or walk topography with maximum traction and without imparting appreciable jar or jolt to the chair. The connection of the attachment to the chair is solely by means of the U-bolts 49 engaging the frame bars 3 so that application of the attachment to or detachment of same from the chair is very readily accomplished.
What is claimed is:
1. In a motor attachment for wheel chairs, a platform, a traction wheel supporting said platform, a motor upon said platform operatively connected to said traction wheel, a rotary shaft secured to and depending from said platform, a sectional adjustable coupling, readily removable means for securing said coupling to the wheel chair, a ball bearing connection between said rotary shaft and said coupling, and starting and control means for said motor secured to the chair in proximity to an occupant thereof, said means including a control button.
, 2. In a motor attachment for wheel chairs having steering means including a steering post and handle therefor, a platform, a traction wheel 4 supporting said platform, a motor upon said platform operatively connected to said traction wheel, a rotary shaft secured to and depending from said platform, a coupling comprising central and terminal sections adjustably connected together, connection between said terminal sections and the chair, a ball bearing connection between said rotary shaft and said coupling, and starting and control means for said motor associated with said steering post, said means including a button on said handle.
3. In a motor attachment for wheel chairs, a platform, a traction wheel supporting said platform, a motor upon said platform operatively connected to said traction wheel, a. rotary shaft operatively carried by and depending from said platform, a sectional coupling disposed below said rotary shaft, terminal sections of said coupling releasably secured to the chair, ball bearing connection between said rotary shaft and one section of said coupling, "and starting and control means for said motor carried by the chair.
SAMUEL DUKE.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,348,568 Kemble Aug. 3, 1920 1,455,720 Dunkley ,Jan. 3, 1923
US54290A 1948-10-13 1948-10-13 Motor attachment for wheel chairs Expired - Lifetime US2495573A (en)

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US54290A US2495573A (en) 1948-10-13 1948-10-13 Motor attachment for wheel chairs
GB11606/49A GB665928A (en) 1948-10-13 1949-05-02 Motor attachment for wheel chairs

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Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701943A (en) * 1949-07-12 1955-02-15 Dean K Johnson Lawn mowing, macerating and collecting device
US2710659A (en) * 1952-04-04 1955-06-14 Moederle Vasco Wheel chair and tractor combination
US2722829A (en) * 1952-07-29 1955-11-08 Harry W Ringering Wheel balancer
US2798565A (en) * 1954-12-23 1957-07-09 Rosenthal Motorized wheel chair steered by driving
US2906357A (en) * 1957-07-11 1959-09-29 Robert E Pletka Power driving units
US2978053A (en) * 1957-10-21 1961-04-04 Arthur O Schmidt Driving and steering apparatus for wheel chairs
US2993550A (en) * 1958-05-09 1961-07-25 Aidco Prime mover for wheel chairs
US3047085A (en) * 1960-03-04 1962-07-31 Moto Mower Inc Lawn mower
US3099326A (en) * 1961-07-11 1963-07-30 Kysor Heater Company Powered vehicle
US3213957A (en) * 1962-08-27 1965-10-26 Wessex Ind Poole Ltd Self-propelled wheel chair
US3232375A (en) * 1964-03-13 1966-02-01 William Hugh Brown Self-propelled scaffold
US3256954A (en) * 1965-03-31 1966-06-21 Brown William H Self-propelled means for scaffolds
US3746188A (en) * 1969-10-24 1973-07-17 K Stienen Storage apparatus
US3905437A (en) * 1973-07-27 1975-09-16 U M I Kk Electrically drivable wheelchair
US3964786A (en) * 1974-12-20 1976-06-22 David Mashuda Mechanized wheelchair
US4098521A (en) * 1976-08-09 1978-07-04 Reme Enterprises, Inc. Wheelchair adaptable for passage in narrow spaces
US4475613A (en) * 1982-09-30 1984-10-09 Walker Thomas E Power operated chair
US4503925A (en) * 1983-06-13 1985-03-12 Amigo Sales, Inc. Detachable steerable power unit for occupant-propelled wheelchairs
US4586723A (en) * 1982-03-01 1986-05-06 Nabinger Herman G Steering device for a wheelchair
DE3525234A1 (en) * 1985-07-15 1987-01-15 Spofa Vereinigte Pharma Werke Electric wheel-chair for the disabled
EP0382873A1 (en) * 1989-02-17 1990-08-22 Leon Goldenberg Collopsible wheelchair
WO1992003114A1 (en) * 1990-08-27 1992-03-05 Knud Raun A wheel chair with a driving unit, and a driving unit for wheel chairs
US5135063A (en) * 1990-08-30 1992-08-04 Smucker Manufacturing, Inc. Power unit for driving manually-operated wheelchair
US5222567A (en) * 1991-04-26 1993-06-29 Genus Inc. Power assist device for a wheelchair
WO1993024342A1 (en) * 1992-06-02 1993-12-09 Quickie Designs Inc. Powered wheelchair with a detachable power drive assembly
US5826670A (en) * 1996-08-15 1998-10-27 Nan; Huang Shun Detachable propulsive device for wheelchair
US5988304A (en) * 1994-06-22 1999-11-23 Behrendts; Mickey J. Wheelchair combination
US6050593A (en) * 1997-04-30 2000-04-18 Golden Technologies, Inc. Personal mobility vehicle
DE19958994C1 (en) * 1999-12-07 2000-08-31 Rehatechnik Heymer Gmbh Wheel chair with electric motor between back wheels has drive unit, drive wheel, rocker arms and expander element
US6129165A (en) * 1996-07-03 2000-10-10 Pride Mobility Products, Corporation Curb-climbing power wheelchair
US6176337B1 (en) 1997-04-30 2001-01-23 Golden Technologies, Inc. Personal mobility vehicle
US6178575B1 (en) * 1998-10-09 2001-01-30 S. N. Seiki Co., Ltd. Stretcher mounting unit
US6186252B1 (en) 1996-07-03 2001-02-13 Pride Mobility Products, Corporation Foldable midwheel drive power chair
US6481514B2 (en) * 2000-03-15 2002-11-19 Fuji Jukogyo Kabushiki Kaisha Auxiliary power device of wheelchair
US20030089537A1 (en) * 2001-11-09 2003-05-15 Sinclair Sir Clive Marles Wheelchair drive unit
US20080066974A1 (en) * 2006-09-14 2008-03-20 Pearlman Jonathan L Personal vehicle
US20100012404A1 (en) * 2008-07-18 2010-01-21 Wu's Tech Co., Ltd. Wheelchair
US20110083915A1 (en) * 2009-10-13 2011-04-14 Criterion Health, Inc. Adjustable mid-wheel power wheelchair drive system
US20110214929A1 (en) * 2010-02-25 2011-09-08 Paul Filkoski Motorized Anti-Tipper Device
US20110308880A1 (en) * 2010-06-17 2011-12-22 Wu's Tech Co., Ltd. Wheelchair structure
US9398990B2 (en) 2011-07-06 2016-07-26 W Mark Richter Motion-based power assist system for wheelchairs
US9428040B2 (en) * 2012-12-21 2016-08-30 Honda Motor Co., Ltd. Electric motor mounting structure
US9615982B2 (en) 2013-03-14 2017-04-11 Max Mobility, Llc. Motion assistance system for wheelchairs
USD786741S1 (en) 2015-11-16 2017-05-16 Amigo Mobility International, Inc. Lateral stability wheel
USD800410S1 (en) 2015-11-23 2017-10-17 Amigo Mobility International, Inc. Material handling cart
US9796401B1 (en) * 2016-11-01 2017-10-24 Michael Ammirati Motorized wheel accessory for a stroller
US9795524B2 (en) 2015-02-24 2017-10-24 Max Mobility, Llc Assistive driving system for a wheelchair
USD805004S1 (en) 2015-07-01 2017-12-12 Amigo Mobility International, Inc. Brake release handle
US10167051B1 (en) 2017-12-12 2019-01-01 Max Mobility, Llc Assistive driving system for a wheelchair and method for controlling assistive driving system
RU2754373C1 (en) * 2018-04-27 2021-09-01 Рода Футура, Ллс Detachable booster for wheelchair with manual drive
USD955685S1 (en) 2015-11-23 2022-06-21 Amigo Mobility International, Inc. Material handling cart

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GB8523374D0 (en) * 1985-09-21 1985-10-23 Armstrong A Adapting vehicles to powered drive
IL77966A (en) * 1986-02-24 1991-03-10 Propel Partnership 1987 Wheelchair drive
FR2675688A1 (en) * 1991-04-26 1992-10-30 Poirier Ets INDIVIDUAL VEHICLE FOR USE IN MANUAL OR MOTORIZED VERSION, IN PARTICULAR WHEELCHAIR OR TRICYCLE.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1348568A (en) * 1919-03-10 1920-08-03 Kemble Duston Electrically-propelled vehicle
US1455720A (en) * 1923-01-03 1923-05-15 William H Dunkley Power propulsion of road vehicles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1348568A (en) * 1919-03-10 1920-08-03 Kemble Duston Electrically-propelled vehicle
US1455720A (en) * 1923-01-03 1923-05-15 William H Dunkley Power propulsion of road vehicles

Cited By (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701943A (en) * 1949-07-12 1955-02-15 Dean K Johnson Lawn mowing, macerating and collecting device
US2710659A (en) * 1952-04-04 1955-06-14 Moederle Vasco Wheel chair and tractor combination
US2722829A (en) * 1952-07-29 1955-11-08 Harry W Ringering Wheel balancer
US2798565A (en) * 1954-12-23 1957-07-09 Rosenthal Motorized wheel chair steered by driving
US2906357A (en) * 1957-07-11 1959-09-29 Robert E Pletka Power driving units
US2978053A (en) * 1957-10-21 1961-04-04 Arthur O Schmidt Driving and steering apparatus for wheel chairs
US2993550A (en) * 1958-05-09 1961-07-25 Aidco Prime mover for wheel chairs
US3047085A (en) * 1960-03-04 1962-07-31 Moto Mower Inc Lawn mower
US3099326A (en) * 1961-07-11 1963-07-30 Kysor Heater Company Powered vehicle
US3213957A (en) * 1962-08-27 1965-10-26 Wessex Ind Poole Ltd Self-propelled wheel chair
US3232375A (en) * 1964-03-13 1966-02-01 William Hugh Brown Self-propelled scaffold
US3256954A (en) * 1965-03-31 1966-06-21 Brown William H Self-propelled means for scaffolds
US3746188A (en) * 1969-10-24 1973-07-17 K Stienen Storage apparatus
US3905437A (en) * 1973-07-27 1975-09-16 U M I Kk Electrically drivable wheelchair
US3964786A (en) * 1974-12-20 1976-06-22 David Mashuda Mechanized wheelchair
US4098521A (en) * 1976-08-09 1978-07-04 Reme Enterprises, Inc. Wheelchair adaptable for passage in narrow spaces
US4586723A (en) * 1982-03-01 1986-05-06 Nabinger Herman G Steering device for a wheelchair
US4475613A (en) * 1982-09-30 1984-10-09 Walker Thomas E Power operated chair
US4503925A (en) * 1983-06-13 1985-03-12 Amigo Sales, Inc. Detachable steerable power unit for occupant-propelled wheelchairs
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