US4399570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable lift for handicapped persons
Assignee: IREY STEVEN R
•
Filing: 1981-11-16
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Granted: 1983-08-23
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Expires: 2001-11-16
Abstract
Abstract A portable lift is provided for use in aiding handicapped individuals in boarding or debarking from boats, airplanes and other vehicles, and in entering and exiting swimming pools and saunas, including multiple adapter systems designed to facilitate each of the above uses.
Inventors
- 👤 Gary B. Tracy
- 👤 Geary M. Leggett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:26
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/10; A61G7/1001; A61G7/1005; A61G3/00; A61G3/02; A61G3/06; A61G3/062; A61G7/1013; A61G7/1019; A61G7/104; A61G7/1044; A61G7/1046; A61G7/1049; A61G7/1059; A61G7/1073; A61G7/1076; B; B66; B66B; B66B9/00; F; F16; F16C; F16C33/00; F16C33/72; F16C33/74; A61G2220/00; A61G2220/10; A61G2220/16; A61G3/063; Y; Y10; Y10S; Y10S187/00; Y10S187/901
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
176 words
A portable lift for use in aiding individuals in boarding or debarking from vehicles, or in entering and exiting pools, saunas or the like, comprising: a structural frame constructed of two or more vertical structural members, each attached at the top to an upper horizontal structural member and at the bottom to a lower horizontal structural member; two or more vertical slide support members, each attached at the top to said upper horizontal structural member and at the bottom to said lower horizontal structural member; a bearing attached to said lower horizontal structural member; a motor transmission unit attached to said upper horizontal structural member; a threaded metal rod supported by said bearing and attached to to said motor transmission unit; a load support system having a threaded hole through which said threaded metal rod is screwed, whereby said load support system may be raised or lowered when said threaded metal rod is turned, and further having receptacles; sliding means rigidly attached to said load support plate and slideably attached to said vertical slide support members.
Claim 2
Dependent Claim
176 words
A portable lift for use in aiding individuals in boarding or debarking from vehicles, or in entering and exiting pools, saunas or the like, comprising: a structural frame constructed of two or more vertical structural members, each attached at the top to an upper horizontal structural member and at the bottom to a lower horizontal structural member; two or more vertical slide support members, each attached at the top to said upper horizontal structural member and at the bottom to said lower horizontal structural member; a bearing attached to said lower horizontal structural member; a motor transmission unit attached to said upper horizontal structural member; a threaded metal rod supported by said bearing and attached to to said motor transmission unit; a load support system having a threaded hole through which said threaded metal rod is screwed, whereby said load support system may be raised or lowered when said threaded metal rod is turned, and further having receptacles; sliding means rigidly attached to said load support plate and slideably attached to said vertical slide support members.
Claim 3
Dependent Claim
23 words
The invention of claim 1, wherein said sliding means consists of two or more rollers which roll against said vertical slide support members.
Claim 4
Dependent Claim
60 words
The invention of claim 1 or 2, including a seat unit consisting of: a metal seat base having two or more metal tongues whereby said metal seat base will mount to said receptacles on said load support system; first swivel means attached to said metal seat base; a seat attached to said first swivel means on said metal seat base.
Claim 5
Dependent Claim
117 words
The invention of claim 1 or 2, including: one or more standoffs, consisting of a standoff support rod pivotally connected at one end to said vertical structural member and having a standoff bumper constructed of a cushioning material which is connected to the other end; an adapter for use in attaching said portable lift to the side of a boat, consisting of: a metal boat clamp with a channel of sufficient width to slip over the gunwale of a boat; two or more hanging bars, each pivotally attached at one end to said metal boat clamp and having a lift attachment clamp at the opposite end whereby said portable lift may be attached to said hanging bars.
Claim 6
Dependent Claim
24 words
The invention of claim 4, wherein one of said hanging bars includes second swivel means whereby said portable lift will swing upward for storage.
Claim 7
Dependent Claim
71 words
The invention of claim 1 or 2, including a sauna seat consisting of: a metal base having two or more metal tongues whereby said metal base will mount to said receptacles on said load support system; a vertical structural piece attached at the bottom to said metal base and having a horizontal extension at the top; a seat attached to the end of said horizontal extension of said vertical structural piece.
Claim 8
Dependent Claim
74 words
The invention of claim 1 or 2, including a poolside adapter unit consisting of: a horizontal structural base having one or more metal tongues extending therefrom; an axle attached to said structural base and having wheels thereon; an upright structural member having hanging bar clamps thereon whereby said portable lift may be rigidly attached to said poolside adapter unit; one or more receptacles securely anchored, whereby said metal tongues may be secured at poolside.
Claim 9
Dependent Claim
52 words
The invention of claim 1 or 2, including: an airport transport unit having hanging bar clamps and supports whereby said portable lift may be rigidly attached thereto; a wheelchair base having one or more metal tongues extending therefrom whereby said wheelchair base will mount to said receptacles on said load support system.
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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) | 1986-08-22 | 1987-02-21 | 1987-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-22 | 1991-02-21 | 1991-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-22 | 1995-02-21 | 1995-08-23 | $7700.00 | Window Closed / Lapsed |