The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 1992
Filed:
Sep. 05, 1991
Applicant:
Inventor:
Thomas S Halliday, Needham, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62K / ; B62B / ;
U.S. Cl.
CPC ...
2803041 ; 280 42 ; 280649 ; 280650 ; 70-6 ; 70 34 ; 297 45 ; 297D / ; 403 85 ;
Abstract
A locking apparatus is operative to selectively prevent the folding of a wheelchair of the type having a pair of centrally pivoted cross braces under the wheelchair seat. A bracket member is provided at each end of a pin which is adapted to constitute the pivot for the cross braces. An elongate bar is hinged at one end to one of the brackets and is adapted to be swung into a position between the cross braces so as to obstruct folding. A locking device operates between the other end of the bar and the other of the brackets for selectively retaining the bar in obstructing position.