Patent US3894303A successfully refreshed from Google Patents.
US3894303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Invalid lift
Assignee: Individual
•
Filing: 1973-09-26
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Granted: 1975-07-15
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Expires: 1993-09-26
Abstract
Abstract An invalid lift is disclosed usable in lifting an invalid from a lowered position. The invalid lift includes a wheel-supported undercarriage adapted to rest on the floor, and opposed spacedapart post structures mounted on the undercarriage and projecting upwardly therefrom, each post structure including handlebar means adjacent the top thereof. An elongate body support frame is disposed between the post structures in a position overlying the undercarriage. The body support frame is moved up and down with actuation of elevator means comprising a pair of threaded shafts associated with each post structure having followers on the shaft which move axially of the shafts with rotation of the shafts. Power-operated means is provided for rotating the shafts in the post structures in unison.
Inventors
- 👤 William L Angel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:48
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/10; A61G7/1001; A61G7/1011; A61G7/1013; A61G7/1019; A61G7/104; A61G7/1046; A61G2200/00; A61G2200/30; A61G2200/34; Y; Y10; Y10S; Y10S297/00; Y10S297/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
128 words
An invalid lift comprising a wheeled undercarriage adapted to rest on the floor, opposed, spaced-apart, stationary post structures mounted on the undercarriage and projecting upwardly therefrom, an elongated substantially horizontal body support frame disposed between and below the top extremity of the post structures and overlying said undercarriage, said body support frames comprising an elongated seat panel section and a ramp panel section hinged at one margin to an end margin of the seat panel section, said seat panel section being located above said carriage and said ramp panel section extending beyond the side of said undercarriage to an opposite margin to rest on the floor, and power-operated elevator means associated with each post structure supporting said body support frame and operable when actuated to lift the same.
Claim 2
Dependent Claim
128 words
An invalid lift comprising a wheeled undercarriage adapted to rest on the floor, opposed, spaced-apart, stationary post structures mounted on the undercarriage and projecting upwardly therefrom, an elongated substantially horizontal body support frame disposed between and below the top extremity of the post structures and overlying said undercarriage, said body support frames comprising an elongated seat panel section and a ramp panel section hinged at one margin to an end margin of the seat panel section, said seat panel section being located above said carriage and said ramp panel section extending beyond the side of said undercarriage to an opposite margin to rest on the floor, and power-operated elevator means associated with each post structure supporting said body support frame and operable when actuated to lift the same.
Claim 3
Dependent Claim
185 words
An invalid lift comprising an undercarriage with wheel support adapted to rest on the floor, opposed, spaced-apart post structures mounted on the undercarriage and projecting upwardly therefrom, each post structure including spaced uprights and said uprights in a post structure being joined adjacent their tops by handlebar means, a threaded shaft in each upright and means mounted on the undercarriage for rotating said threaded shafts in unison, follower means mounted on each threaded shaft movable axially on the shaft with rotation of the shaft, a support mounted on the follower means in the uprights of one post structure and another support mounted on the follower means in the uprights of the opposed post structure, and an elongate body support frame disposed between the post structures, said body support frame comprising a seat panel section and a ramp panel section hinged at one margin to an end margin of a seat panel section, said seat panel section resting on said first and second supports and said ramp panel section extending beyond a side of said undercarriage to an opposite margin adapted to rest on the floor.
Claim 4
Dependent Claim
185 words
An invalid lift comprising an undercarriage with wheel support adapted to rest on the floor, opposed, spaced-apart post structures mounted on the undercarriage and projecting upwardly therefrom, each post structure including spaced uprights and said uprights in a post structure being joined adjacent their tops by handlebar means, a threaded shaft in each upright and means mounted on the undercarriage for rotating said threaded shafts in unison, follower means mounted on each threaded shaft movable axially on the shaft with rotation of the shaft, a support mounted on the follower means in the uprights of one post structure and another support mounted on the follower means in the uprights of the opposed post structure, and an elongate body support frame disposed between the post structures, said body support frame comprising a seat panel section and a ramp panel section hinged at one margin to an end margin of a seat panel section, said seat panel section resting on said first and second supports and said ramp panel section extending beyond a side of said undercarriage to an opposite margin adapted to rest on the floor.
Claim 5
Dependent Claim
31 words
The invalid lift of claim 1, wherein said elevator means associated with a post structure comprises a vertically movable support having a side margin of said seat panel detachably resting thereon.
Claim 6
Dependent Claim
124 words
An invalid lift comprising an elongate substantially horizontal body support frame including a seat panel section and a ramp panel section hinged at one margin to a margin of the seat panel section, an undercarriage adapted to rest on the floor, post structure projecting upwardly from said undercarriage, a power-operated, rotatable, threaded shaft disposed in an upright position in the post structure and a follower mounted on said shaft which moves axially on said shaft with rotation of said shaft, and vertically movable means mounted on said follower supporting said seat panel section and adapted to raise and lower the same, said ramp panel section extending beyond a side of said undercarriage to an opposite margin which is adapted to rest on the floor.
Claim 7
Dependent Claim
124 words
An invalid lift comprising an elongate substantially horizontal body support frame including a seat panel section and a ramp panel section hinged at one margin to a margin of the seat panel section, an undercarriage adapted to rest on the floor, post structure projecting upwardly from said undercarriage, a power-operated, rotatable, threaded shaft disposed in an upright position in the post structure and a follower mounted on said shaft which moves axially on said shaft with rotation of said shaft, and vertically movable means mounted on said follower supporting said seat panel section and adapted to raise and lower the same, said ramp panel section extending beyond a side of said undercarriage to an opposite margin which is adapted to rest on the floor.
Claim 8
Dependent Claim
17 words
The invalid lift of claim 4, wherein said post structure includes handlebar means adjacent the top thereof.
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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) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |