US4555124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trolley for use with a wheelchair
Assignee: HANDICART Ltd (FORMERLY CALLED DARTBLAZE LIMITED) A BRITISH Co
•
Filing: 1983-09-06
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Granted: 1985-11-26
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Expires: 2003-09-06
Abstract
Abstract A trolley for use by invalids which can be attached to the frame of a wheelchair, and comprising a frame with wheels and supporting a load carrying portion and clamping arms attached to the frame members and provided with clamps for attaching the trolley to the wheelchair frame.
Inventors
- 👤 Michael J. Millington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:25
CPC Classifications
B; B62; B62B; B62B5/00; B62B5/002; Y; Y10; Y10S; Y10S297/00; Y10S297/04; Y10T; Y10T403/00; Y10T403/29
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
169 words
A trolley for attachment to a wheelchair comprising a frame, a plurality of jockey wheels attached to said frame which are rotatable about a horizontal axis and are capable of swinging about a vertical axis, a load carrying portion supported on said frame, and two clamping arms, one of said clamping arms being positioned at each side of said trolley, and a clamp attached to each of said clamping arms for attaching said trolley to the frame of the wheelchair, and means adjustably attaching at least one of said clamping arms to a frame member of said trolley whereby said trolley may be attached to any one of a plurality of wheelchairs of different widths, and means in the form of a single control member, which is adjustable by using one hand only to adjust at least one of said two clamping arms in a lateral direction relative to the other of said two clamping arms to completely and securely attach said clamps of said trolley to a wheelchair.
Claim 2
Dependent Claim
169 words
A trolley for attachment to a wheelchair comprising a frame, a plurality of jockey wheels attached to said frame which are rotatable about a horizontal axis and are capable of swinging about a vertical axis, a load carrying portion supported on said frame, and two clamping arms, one of said clamping arms being positioned at each side of said trolley, and a clamp attached to each of said clamping arms for attaching said trolley to the frame of the wheelchair, and means adjustably attaching at least one of said clamping arms to a frame member of said trolley whereby said trolley may be attached to any one of a plurality of wheelchairs of different widths, and means in the form of a single control member, which is adjustable by using one hand only to adjust at least one of said two clamping arms in a lateral direction relative to the other of said two clamping arms to completely and securely attach said clamps of said trolley to a wheelchair.
Claim 3
Dependent Claim
35 words
A trolley according to claim 1 including means attaching said at least one clamping arm to said frame member of the trolley for pivotal movement about a generally vertical axis relative to said frame member.
Claim 4
Dependent Claim
17 words
A trolley according to claim 1, including a twist grip of adjustable length interconnecting said clamping arms.
Claim 5
Dependent Claim
33 words
A trolley according to claim 3 wherein said twist grip comprises two externally threaded rods, one attached to each of said clamping arms, and themselves connected together by an internally threaded grip sleeve.
Claim 6
Dependent Claim
16 words
A trolley according to claim 1 in which said clamping arms are generally tubular and U-shaped.
Claim 7
Dependent Claim
18 words
A trolley according to claim 1 in which said clamping arms are generally tubular and triangular in shape.
Claim 8
Dependent Claim
21 words
A trolley according to claim 1 in which said clamping arms possess a flattened area to which a clamp is secured.
Claim 9
Dependent Claim
26 words
A trolley according to claim 1 wherein each clamp includes a portion of generally semi-circular cross section for engagement with a frame member of a wheelchair.
Claim 10
Dependent Claim
14 words
A trolley according to claim 1 in which said clamping arms are vertically adjustable.
Claim 11
Dependent Claim
20 words
A trolley according to claim 1 in which said clamping arms are capable of pivotal movement in a vertical plane.
Claim 12
Dependent Claim
16 words
A trolley according to claim 1 in which two clamps are attached to each clamping arm.
Claim 13
Dependent Claim
20 words
A trolley according to claim 2 in which said clamping arms are capable of pivotal movement in a vertical plane.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-25 | 1989-05-27 | 1989-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-25 | 1993-05-27 | 1993-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-25 | 1997-05-27 | 1997-11-26 | $7700.00 | Window Closed / Lapsed |