Patent US4895380A successfully refreshed from Google Patents.
US4895380A
Expired / Lapsed
US
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Adjustable variable slope elevating creeper
Assignee: Individual
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Filing: 1988-02-17
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Granted: 1990-01-23
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Expires: 2008-02-17
Abstract
Abstract An improved adjustable variable slope elevating creeper including a mobile horizontal frame, a platform for supporting a reclining person, and a device for lifting one or both ends of the platform by a control operable by the reclining person.
Inventors
- 👤 Ben Brooks
- 👤 Frankie L. Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:14
CPC Classifications
B; B25; B25H; B25H5/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
133 words
An improved adjustable variable slope elevating creeper comprising (a) a mobile horizontal frame, (b) a platform having sufficient length and rigidity to support a reclining person, said platform being supported above said horizontal frame at opposite ends by a first movable lifter arm and a second movable lifter arm, (c) means for raising said first lifter arm attached to said horizontal frame and linked to said first lifter arm and having the capacity to cause said lifter arm to raise and lower said platform upon operation of said means for raising said first lifter arm, (d) means for causing said second lifter arm to move in concert with said first lifter arm, and (e) means for operating said means for raising said first lifter arm positioned for convenient operation by said reclining person.
Claim 2
Dependent Claim
133 words
An improved adjustable variable slope elevating creeper comprising (a) a mobile horizontal frame, (b) a platform having sufficient length and rigidity to support a reclining person, said platform being supported above said horizontal frame at opposite ends by a first movable lifter arm and a second movable lifter arm, (c) means for raising said first lifter arm attached to said horizontal frame and linked to said first lifter arm and having the capacity to cause said lifter arm to raise and lower said platform upon operation of said means for raising said first lifter arm, (d) means for causing said second lifter arm to move in concert with said first lifter arm, and (e) means for operating said means for raising said first lifter arm positioned for convenient operation by said reclining person.
Claim 3
Dependent Claim
25 words
An improved adjustable variable slope elevating creeper as claimed in claim 1 wherein said means for raising said first lifter arm is a hydraulic jack.
Claim 4
Dependent Claim
34 words
An improved adjustable variable slope elevating creeper as claimed in claim 1, wherein said means for causing said second lifter arm to move in concert with said first lifter arm is a gear means.
Claim 5
Dependent Claim
27 words
An improved adjustable variable slope elevating creeper as claimed in claim 3 wherein said gear means is a sliding gear means capable of being engaged and disengaged.
Claim 6
Dependent Claim
34 words
An improved adjustable variable slope elevating creeper as claimed in claim 4, wherein said sliding gear is linked to a slideable spring loaded cylinder capable of maintaining said gear means in the engaged position.
Claim 7
Dependent Claim
42 words
An improved adjustable variable slope elevating creeper as claimed in claim 5 wherein said slideable spring loaded cylinder is responsive to means for disengaging said gear means and may be secured to allow said gear means to remain in the disengaged position.
Claim 8
Dependent Claim
88 words
An improved adjustable variable slope elevating creeper comprising (a) a mobile horizontal frame, (b) a platform suspended above said horizontal frame and having sufficient length and rigidity to support a reclining person and being comprised of a first section and a second section capable of moving either in concert or independently, and (c) means for independently elevating a first end of said platform relative to a second end of said platform, said means for independently elevating said first end being positioned for convenient operation by said reclining person.
Claim 9
Dependent Claim
88 words
An improved adjustable variable slope elevating creeper comprising (a) a mobile horizontal frame, (b) a platform suspended above said horizontal frame and having sufficient length and rigidity to support a reclining person and being comprised of a first section and a second section capable of moving either in concert or independently, and (c) means for independently elevating a first end of said platform relative to a second end of said platform, said means for independently elevating said first end being positioned for convenient operation by said reclining person.
Claim 10
Dependent Claim
54 words
An improved adjustable variable slope elevating creeper as claimed in claim 7 wherein said means for independently raising said first end of said platform is capable of raising one end of said first section relative to the other end of said first section without affecting the slope or horizontal orientation of said second section.
Claim 11
Dependent Claim
55 words
An improved adjustable variable slope elevating creeper as claimed in claim 8 wherein said first and second sections of said platform are aligned end to end such that the intersecting line of said sections is perpendicular to the direction of said reclining person and wherein said first and second sections are approximately equal in size.
Claim 12
Dependent Claim
30 words
An improved adjustable variable slope elevating creeper as claimed in claim 9 wherein said adjacent ends of said first and second sections are attached to one another by hinge means.
Claim 13
Dependent Claim
24 words
An improved adjustable variable slope elevating creeper as claimed in claim 9 wherein said platform is further supported by at least one support brace.
Claim 14
Dependent Claim
37 words
An improved adjustable variable slope elevating creeper as claimed in claim 9 wherein said first and second sections are further connected by interlocking means capable of connecting said first and second sections to form a rigid platform.
Claim 15
Dependent Claim
32 words
An improved adjustable variable slope elevating creeper as claimed in claim 12 said interlocking means comprises one or more slideable rigid support bars capable of being conveniently positioned by said reclining person.
Claim 16
Dependent Claim
35 words
An improved adjustable variable slope elevating creeper as claimed in claim 13 wherein said slideable rigid support bars may be positioned in one or more hollow chambers on each of said first and second sections.
Claim 17
Dependent Claim
23 words
An improved adjustable variable slope elevating creeper as claimed in claim 14 wherein said slideable rigid support bars may be secured in position.
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) | 1993-01-22 | 1993-07-24 | 1994-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-22 | 1997-07-24 | 1998-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-22 | 2001-07-24 | 2002-01-23 | $7700.00 | Window Closed / Lapsed |