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:
Jul. 11, 1989
Filed:
Jun. 02, 1987
James G Tappel, Palo Alto, CA (US);
Luconex, Inc., Foster City, CA (US);
Abstract
A stowable crutch is disclosed which includes two parallel integrated tubes in a single body with a first tube to which a crutch tip is mounted and a second tube to which a rest support is attached, each slidably mounted within an integrated tube. The interior of the integrated tubes are fluted or polygonal in cross section to engage a ratchet or detent mounted on the end of the first and second tubes to effectuate a selection means. The first and second tubes are engaged by an external detent mounted at either end of the body. The first and second tubes are rotated individually to a desired selection and extended to that length whereupon they engage with the external detent. The handgrip is slidably mounted to the body to provide a wide range of adjustment. The external detents provide a means to signal when the first and second tubes are not securely engaged.