Foldable midwheel drive power chair (US6186252)

1998-10-05	US1998000166303
1998-04-14	US1998000060187
1997-01-31	US1997000067721
1996-11-12	US1996000748214
1996-11-01	US1996000742972
1996-07-03	US1996000056607
1997-10-06	US1997000061120P

Abstract:

A power chair is provided comprising a frame transversely foldable between operating and transport positions. A seat is connected to the frame, with a pair of drive wheels also connected to the frame. The drive wheels are rotatable about a transverse axis below a portion of the seat supporting an occupant's thighs. The power chair further includes motors for driving respective drive wheels. Perspective motor/drive wheel combinations are pivotally connected to the frame. At least one ground-engaging idler wheel is connected to the frame, located rearward of the drive wheels. At least one anti-tip wheel is positioned above ground, forward of the drive wheels, and connected to the frame for movement relative to the frame upon encountering an obstacle.

Attorney, Agent or Firm:

Seidel, Gonda, Lavorgna & Monaco, PC ;

Primary / Asst. Examiners:

Camby, Richard M.;

Maintenance Status:

E2 Expired Check current status

INPADOC Legal Status:

Show legal status actions Buy Now: Family Legal Status Report

Related Applications:

Application Number	Filed	Pub. Date	Title
US1998000060187	1998-04-14
US1997000067721	1997-01-31	1999-01-26	Power wheelchair
US1996000748214	1996-11-12	1999-08-31	Mid-wheel drive power wheelchair
US1996000742972	1996-11-01
US1996000056607	1996-07-03	1998-09-01	Motorized wheelchair


	Parent Case:			CROSS-REFERENCE TO RELATED APPLICATIONS This patent application is based in part on U.S. provisional patent application Ser. No. 60/061,120, filed Oct. 6, 1997 in the names of Walter E. Schaffner, James P. Mulhern, Stephen J. Antonishak and Gerald J. White and entitled FOLDABLE MID-WHEEL DRIVE POWER WHEELCHAIR, the benefit of the filing date of which is hereby claimed under 35 USC 120. This patent application is a continuation-in-part of U.S. design patent application Ser. No. 29/067,721 filed Jan. 31, 1997 now U.S. Des. Pat. No. 404,693, U.S. utility patent application Ser. No. 08/742,972 filed Nov. 1, 1996, U.S. utility patent application Ser. No. 08/748,214 filed Nov. 12, 1996 now U.S. Pat. No. 5,944,131 and U.S. patent application Ser. No. 09/060,187 filed Apr. 14, 1998, all of which are, directly or indirectly, continuation-in-parts of U.S. design application Ser. No. 29/056,607 filed Jul. 3, 1996, now U.S. Des. Pat. No. 397,645 issued Sep. 1, 1998, the benefit of the filing date of which are claimed under 35 USC 120.
	Designated Country:			AL AM AP AT AZ BA BB BG BR BY CA CH CN CU CZ DE DK EA EE EP ES FI GB GE GH GM HR HU ID IL IS JP KE KG KP KR KZ LC LK
	Family:			Show 22 known family members
	First Claim: Show all 25 claims			What is claimed is: 1. A power chair comprising: a. a frame transversely foldable between operating and transport positions; b. a seat 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; f. at least one anti-tip wheel forward of said drive wheels and positioned above ground, said at least one anti-tip wheel connected to said frame for resilient movement relative to said frame upon encountering an obstacle; g. a pair of transversely spaced arms positioned on respective sides of said power chair; and h. means connected to said frame for adjustably positioning said arms at a plurality of heights, the means connected to said frame comprising i. a tongue member fixedly connected to said arm, having a plurality of recesses in the surface thereof; ii. a housing member connected to said frame and having a receptacle of varying depth formed therein, being movable among positions at which various parts of said receptacle having different depths communicate with a selected one of said recesses; and iii. movable means resident in said receptacle and being of a size for receipt of a portion thereof by a recess with which said receptacle is communicating for interfering with movement of said tongue relative to said housing when said movable means is in a relatively shallow portion of said receptacle and freely permitting movement of said tongue when said movable means is in a relatively deep portion of said receptacle.
	Background / Summary:			Show background / summary
	Drawing Descriptions:			Show drawing descriptions
	Description:			Show description
	Forward References:			Show 28 U.S. patent(s) that reference this one

U.S. References:

Go to Result Set: All U.S. references | Forward references (28) | Backward references (189) | Citation Link

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* some details unavailable

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