Patent US5029671A successfully refreshed from Google Patents.
US5029671A
Expired / Lapsed
US
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Mechanic's walk
Assignee: Individual
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Filing: 1990-08-20
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Granted: 1991-07-09
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Expires: 2010-08-20
Abstract
Abstract A compact foldable mechanic's walk for facilitating servicing of motor vehicles by improving access to the engine compartment. The mechanic's walk includes a pair of relatively narrow elongated planar mirror image platform members hingedly connected together along abuttable acute angular ends. The platform members are supportable by a plurality of pivotally supported legs adapted to be folded in against the bottom surfaces of the platform members. The platform members preferably are flanged so that in folded condition the in-folded support legs are enclosed within a box-like enclosure.
Inventors
- 👤 Robert L. Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:05
CPC Classifications
B; B60; B60S; B60S5/00; E; E04; E04G; E04G1/00; E04G1/28; E04G1/34
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
84 words
A mechanic's walk for facilitating the servicing of motor vehicles which comprises: (A) a pair of relatively narrow elongated planar platform members, each having a top and bottom surface and each having one acutely angular end edge, said acute angles being equal and said platform members being abuttable along said angular edges, (B) hinge means connecting said platform members along said angular edges, and (C) a plurality of support legs foldably attached to extend from the bottom surface of each of said platform members.
Claim 2
Dependent Claim
84 words
A mechanic's walk for facilitating the servicing of motor vehicles which comprises: (A) a pair of relatively narrow elongated planar platform members, each having a top and bottom surface and each having one acutely angular end edge, said acute angles being equal and said platform members being abuttable along said angular edges, (B) hinge means connecting said platform members along said angular edges, and (C) a plurality of support legs foldably attached to extend from the bottom surface of each of said platform members.
Claim 3
Dependent Claim
16 words
A mechanic's walk according to claim 1 wherein said angular edges are disposed at 45° angles.
Claim 4
Dependent Claim
16 words
A mechanic's walk according to claim 1 wherein said foldable support legs are adjustable in length.
Claim 5
Dependent Claim
56 words
A mechanic's walk according to claim 3 wherein said adjustable length legs each comprise: (A) a first tubular member pivotally attached to a platform member adjacent one end thereof, (B) a second element telescopically fitted within said first element, and (C) fastening means for securing said second element in fixed longitudinal relation to said first element.
Claim 6
Dependent Claim
82 words
A mechanic's walk according to claim 4 wherein: (A) said first and second elements are of square tubular construction, (B) one of said leg elements has a plurality of spaced apart sets of holes extending through one pair of opposite side walls, (C) the other of said leg elements has at least one set of holes extending through one pair of opposite side walls, and (D) a bolt or pin extends through one set of holes in each of the leg elements.
Claim 7
Dependent Claim
41 words
A mechanic's walk according to claim 1 wherein said support legs in folded-in position lie adjacent to the bottom surfaces of the platform members and in folded-out position extend angularly downward and outwardly from adjacent the ends of the platform members.
Claim 8
Dependent Claim
32 words
A mechanic's walk according to claim 6 wherein said support legs at the outermost ends of the platform members are disposed in pairs, each pair connected by a cross-bar for movement together.
Claim 9
Dependent Claim
17 words
A mechanic's walk according to claim 1 wherein said platform members are formed from lightweight metal planking.
Claim 10
Dependent Claim
26 words
A mechanic's walk according to claim 8 wherein said platform members have downwardly extending flanges on at least the opposite side edges and angular end edges.
Claim 11
Dependent Claim
33 words
A mechanic's walk according to claim 9 wherein said support legs are pivotally attached to said flanges and foldable against the bottom surfaces of the platform members within the space between the flanges.
Claim 12
Dependent Claim
87 words
A mechanic's walk for facilitating the servicing of motor vehicles which comprises: (A) a pair of relatively narrow elongated planar platform members formed from lightweight metal planking, each of said platform members having a top and bottom surface and each having a 45° angle end edge, said platform members being abuttable along said angular edges, (B) hinge means connecting said platform members along said angular edges, and (C) a plurality of support legs foldably attached to extend from the bottom surface of each of said platform members.
Claim 13
Dependent Claim
87 words
A mechanic's walk for facilitating the servicing of motor vehicles which comprises: (A) a pair of relatively narrow elongated planar platform members formed from lightweight metal planking, each of said platform members having a top and bottom surface and each having a 45° angle end edge, said platform members being abuttable along said angular edges, (B) hinge means connecting said platform members along said angular edges, and (C) a plurality of support legs foldably attached to extend from the bottom surface of each of said platform members.
Claim 14
Dependent Claim
54 words
A mechanic's walk according to claim 11 wherein: (A) said platform members have downwardly extending flanges on at least the opposite side edges and angular end edges, and (B) said support legs are pivotally attached to said flanges and foldable against the bottom surfaces of the platform members within the space between the flanges.
Claim 15
Dependent Claim
61 words
A mechanic's walk according to claim 12 wherein said foldable support legs are adjustable in length and each comprise: (A) a first tubular element pivotally attached to a platform member adjacent one end thereof, (B) a second element telescopically fitted within said first element, and (C) fastening means for securing said second element in fixed longitudinal relation to said first element.
Claim 16
Dependent Claim
83 words
A mechanic's walk according to claim 13 wherein: (A) said first and second leg elements are of square tubular construction, (B) one of said leg elements has a plurality of spaced apart sets of holes extending through one pair of opposite side walls, (C) the other of said leg elements has at least one set of holes extending through one pair of opposite side walls, and (D) a bolt or pin extends through one set of holes in each of the leg elements.
Claim 17
Dependent Claim
41 words
A mechanic's walk according to claim 12 wherein said support legs in folded-in position lie adjacent to the bottom surfaces of the platform members and in folded-out position extend angularly downward and outwardly from adjacent the ends of the platform members.
Claim 18
Dependent Claim
32 words
A mechanic's walk according to claim 15 wherein said support legs at the outermost ends of the platform members are disposed in pairs, each pair connected by a cross-bar for movement together.
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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) | 1994-07-08 | 1995-01-07 | 1995-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-08 | 1999-01-07 | 1999-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-08 | 2003-01-07 | 2003-07-09 | $7700.00 | Window Closed / Lapsed |