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US4566474A Expired / Lapsed US ⏱️ 0.0 years remaining

Crutch

Assignee: Individual
•
Filing: 1984-04-13
•
Granted: 1986-01-28
•
Expires: 2004-04-13
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Abstract

Abstract An improved adjustable convalescent crutch is provided comprising a top pair of spaced vertically extending support members, each support member carrying a plurality of apertures therethrough, telescopical with respect to a bottom portion of the crutch having a pair of vertically extending support members, spaced apart at the top of the bottom portion, each support member carrying a plurality of apertures therethrough, and converging together towards the bottom to be affixedly joined together in a "Y-shaped" configuration whereby only one of the support members continues down to form the foot of the crutch of the same diameter and material as the one support member, comprising the bottom of the "Y-shaped" configuration. A handgrip is provided having a longitudinal hole therethrough for co-operating with the apertures through the support members, whereby the height of the crutch and the position of the handle may be adjusted in a single adjustment of affixedly joining the handgrip between the pair of telescoped support members by a carriage bolt and wing nut.

Inventors

  • 👤 Edmund T. Burke

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 09:30
CPC Classifications
A; A61; A61H; A61H3/00; A61H3/02

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 265 words
An adjustable crutch generally of the wishbone shape comprising: (a) a top portion having a pair of spaced vertically extending support members, each support member having two ends, an upper and lower end, said pair of spaced support members being spaced from each other at their upper ends by a horizontally extending underarm rest, the lower end of each support member being spaced from the lower end of the other support member, each support member carrying a plurality of apertures therethrough, aligned with the apertures in the oppositely spaced support member; (b) a bottom portion having a pair of vertically extending support members, spaced apart at the top of the bottom portion, each support member carrying a plurality of apertures therethrough aligned with the apertures in the oppositely spaced support member, the vertically extending support members converging together towards the bottom to be affixedly joined together in a "Y-shaped" configuration whereby only one of the support members continues down to form the foot of the crutch of the same diameter and material as the one support member, comprising the bottom of the "Y-shaped" configuration; (c) the top portion and the bottom portion being telescopical with respect to one another so as to permit adjustment of the height of the crutch and permit alignment of the apertures through the support members, and; (d) a handgrip having means for co-operating with the apertures through the support members whereby the height of the crutch and the position of the handle may be adjusted in a single adjustment of affixedly joining the handgrip between the pair of telescoped members.
Claim 2
Dependent Claim 265 words
An adjustable crutch generally of the wishbone shape comprising: (a) a top portion having a pair of spaced vertically extending support members, each support member having two ends, an upper and lower end, said pair of spaced support members being spaced from each other at their upper ends by a horizontally extending underarm rest, the lower end of each support member being spaced from the lower end of the other support member, each support member carrying a plurality of apertures therethrough, aligned with the apertures in the oppositely spaced support member; (b) a bottom portion having a pair of vertically extending support members, spaced apart at the top of the bottom portion, each support member carrying a plurality of apertures therethrough aligned with the apertures in the oppositely spaced support member, the vertically extending support members converging together towards the bottom to be affixedly joined together in a "Y-shaped" configuration whereby only one of the support members continues down to form the foot of the crutch of the same diameter and material as the one support member, comprising the bottom of the "Y-shaped" configuration; (c) the top portion and the bottom portion being telescopical with respect to one another so as to permit adjustment of the height of the crutch and permit alignment of the apertures through the support members, and; (d) a handgrip having means for co-operating with the apertures through the support members whereby the height of the crutch and the position of the handle may be adjusted in a single adjustment of affixedly joining the handgrip between the pair of telescoped members.

References Cited (Backward Citations)

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US596203A Cited
US79305A Cited
US705741A Cited
US909224A Cited
US987497A Cited
US1225364A Cited
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US2585730A Cited
FR1456852A Cited
US3858596A Cited
US4476885A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-01-27 1989-07-29 1990-01-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-01-27 1993-07-29 1994-01-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-01-27 1997-07-29 1998-01-28 $7700.00 Window Closed / Lapsed

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