Patent US3337243A successfully refreshed from Google Patents.
Patent US4011609A successfully refreshed from Google Patents.
US4011609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hospital trolleys
Assignee: GD Searle LLC
•
Filing: 1975-10-06
•
Granted: 1977-03-15
•
Expires: 1995-10-06
Abstract
Abstract The present invention relates to a hospital trolley having a support member and framework with co-operating guide means to enable the transfer of a patient from one trolley to another. It also provides a means for securing two trolley frameworks together by means of interlocking plates.
Inventors
- 👤 Farkas Bethlen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:54
CPC Classifications
A; A61; A61G; A61G1/00; A61G1/003
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
83 words
A hospital trolley comprising: a patient support member; a framework member adapted to carry said support member, a guide rod attached to one of said members; a hollow locating tube attached to the other of said members and adapted to cooperatively engage with said guide rod; and a liner of low friction material adapted to be interposed between the outer surface of said guide rod and the inner surface of said locating tube when said guide rod is inserted into said locating tube.
Claim 2
Dependent Claim
83 words
A hospital trolley comprising: a patient support member; a framework member adapted to carry said support member, a guide rod attached to one of said members; a hollow locating tube attached to the other of said members and adapted to cooperatively engage with said guide rod; and a liner of low friction material adapted to be interposed between the outer surface of said guide rod and the inner surface of said locating tube when said guide rod is inserted into said locating tube.
Claim 3
Dependent Claim
48 words
A hospital trolley as in claim 1 in which the framework includes means for securing it to the framework of a similar trolley so as to align the guide means on the framework of the first trolley with the guide means on the framework of the second trolley.
Claim 4
Dependent Claim
27 words
A hospital trolley as claimed in claim 2 in which the securing means comprises at least one plate adapted to engage a plate on a similar trolley.
Claim 5
Dependent Claim
40 words
A hospital trolley as in claim 3 in which the plate or each plate is partially mounted on the framework and carries a ring for receiving a pin on a plate pivotally mounted on the framework of a similar trolley.
Claim 6
Dependent Claim
24 words
A trolley as in claim 1 wherein said liner comprises a coating of low friction material on the outer surface of said guide rod.
Claim 7
Dependent Claim
24 words
A trolley as in claim 1 wherein said liner comprises a coating of low friction material on the inside surface of said locating tube.
Claim 8
Dependent Claim
30 words
A trolley as in claim 1 wherein said liner is a tubular insert of low friction material inserted into said locating tube and adapted to slidably receive said guide rod.
Claim 9
Dependent Claim
24 words
A trolley as in claim 7 wherein said hollow tube and said liner are split axially to form a slot along the length thereof.
Claim 10
Dependent Claim
12 words
A trolley as in claim 7 wherein said liner is of polytetrafluoroethylene.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |