Curb-climbing power wheelchair (US6129165)

1998-04-14	US1998000060187
1996-07-03	US1996000056607
1996-11-01	US1996000742972
1996-11-12	US1996000748214
1997-01-31	US1997000067721
1997-04-15	US1997000041973P

Abstract:

A curb-climbing front wheel drive power wheelchair has a frame, a seat connected to the frame, a pair of drive wheels connected to the frame and rotatable about a transverse axis below a portion of the seat supporting the wheelchair occupant's thighs. The power wheelchair also has at least one ground-engaging idler wheel connected to the frame behind the drive wheels and anti-tip wheels forward of the drive wheels, rigidly connected to the motors for pivotal movement.

Attorney, Agent or Firm:

Seidel, Gonda, Lavorgna & Monaco, PC ;

Primary / Asst. Examiners:

Camby, Richard M.;

INPADOC Legal Status:

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Related Applications:

Application Number	Filed	Pub. Date	Title
US1996000056607	1996-07-03	1998-09-01	Motorized wheelchair
US1996000742972	1996-11-01
US1996000748214	1996-11-12	1999-08-31	Mid-wheel drive power wheelchair
US1997000067721	1997-01-31	1999-01-26	Power wheelchair


	Parent Case:			CROSS-REFERENCE TO RELATED PATENT APPLICATIONS This patent application is based on a provisional U.S. patent application Ser. No. 60/041,973, filed Apr. 15, 1997 in the names of Walter E. Schaffner, James P. Mulhern, Stephen J. Antonishak and Gerald J. White, entitled CURB-CLIMBING FRONT WHEEL DRIVE POWER WHEELCHAIR, the benefit of the filing date of which is hereby claimed under 35 U.S.C. §120. This patent application is also a continuation-in-part of U.S. patent application Ser. No. 29/056,607 now D397,645, filed Jul. 3, 1996 in the name of Walter E. Schaffner, entitled MOTORIZED WHEELCHAIR, U.S. patent application Ser. No. 08/742,972, filed Nov. 1, 1996 in the names of Walter E. Schaffner, James P. Mulhern and Stephen J. Antonishak, entitled POWER WHEELCHAIR, U.S. patent application Ser. No. 08/748,214, filed Nov. 12, 1996 in the name of Walter E. Schaffner now U.S. Pat. No. 5,944,131, entitled FRONT WHEEL DRIVE POWER WHEELCHAIR and U.S. patent application Ser. No. 29/067,721, filed Jan. 31, 1997 now D404,693 in the name of Walter E. Schaffner, entitled MOTORIZED WHEELCHAIR; the benefit of the filing dates of all of these applications is claimed under 35 U.S.C. §120. The disclosures of all of these applications are incorporated herein by reference.
	Designated Country:			AL AM AP AZ BA BB BG BR BY CA CN CU CZ EA EE GE GH HU IL IS JP KE KG KP KR AT BE CH CY DE DK ES FI FR GR IE IT
	Family:			Show 22 known family members
	First Claim: Show all 32 claims			What is claimed is: 1. A power wheelchair comprising: a. a frame, b. a seat removably connected to said frame; c. a pair of drive wheels connected to said frame and rotatable about transverse axes below a portion of said seat supporting an occupant's thighs; d. motors for driving respective drive wheels, respective motor/drive wheel combinations being pivotally connected to said frame; e. at least one ground-engaging idler wheel connected to said frame and located rearward of said drive wheels; and f. at least one anti-tip wheel forward of said drive wheels and positioned above ground, connected to one of said motors for pivotal movement therewith relative to said frame responsively to changes in drive wheel velocity.
	Background / Summary:			Show background / summary
	Drawing Descriptions:			Show drawing descriptions
	Description:			Show description
	Forward References:			Show 64 U.S. patent(s) that reference this one

U.S. References:

Go to Result Set: All U.S. references | Forward references (64) | Backward references (187) | Citation Link

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* some details unavailable

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