Patent US4285543A successfully refreshed from Google Patents.
US4285543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocker attachment
Assignee: Individual
•
Filing: 1979-12-17
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Granted: 1981-08-25
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Expires: 1999-12-17
Abstract
Abstract Rocker attachments for converting a stationary folding lawn chair into a rocking chair including a spaced pair of arcuate tubular rocking elements which are transversely interconnected by beam structures which are demountably attachable to the chair. The beam structures are demountably connected to the rocker elements for storage and shipping purposes and are movable on the rocker elements to accommodate various sizes of lawn chairs.
Inventors
- 👤 Chester V. Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:57
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/029
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
138 words
A rocker attachment for mounting on a folding lawn chair of the type having a pair of front legs integrally interconnected at the bottom ends by a first transverse bar and a second pair of legs integrally interconnected at the bottom ends by a second transverse bar, said rocker attachment comprising: (a) a pair of rocker elements in spaced apart parallel relationship, each of said rocker elements formed of an elongated tubular member which is bowed along its length into an arcuate configuration; (b) a spaced apart pair of beam means transversely interconnecting said pair of rocker elements for demountably receiving the first and second transverse bars of the folding lawn chair; and (c) said pair of beams are movably mounted on said pair of rocker elements for varying the spaced relationship of said pair of beam means.
Claim 2
Dependent Claim
138 words
A rocker attachment for mounting on a folding lawn chair of the type having a pair of front legs integrally interconnected at the bottom ends by a first transverse bar and a second pair of legs integrally interconnected at the bottom ends by a second transverse bar, said rocker attachment comprising: (a) a pair of rocker elements in spaced apart parallel relationship, each of said rocker elements formed of an elongated tubular member which is bowed along its length into an arcuate configuration; (b) a spaced apart pair of beam means transversely interconnecting said pair of rocker elements for demountably receiving the first and second transverse bars of the folding lawn chair; and (c) said pair of beams are movably mounted on said pair of rocker elements for varying the spaced relationship of said pair of beam means.
Claim 3
Dependent Claim
23 words
A rocker attachment as claimed in claim 1 wherein said pair of beam means are demountably connected to said pair of rocking elements.
Claim 4
Dependent Claim
102 words
A rocker attachment as claimed in claim 1 wherein each of said pair of beam means comprises: (a) an angle member having a first upwardly facing leg and a second leg depending normally therefrom, the second leg having a pair of apertures formed therethrough with each aperture formed adjacent a different one of the opposite ends thereof and each having a different one of said pair of rocker elements extending therethrough; and (b) fastener means mounted on the upwardly facing surface of the first leg of said angle member for demountably receiving one of the transverse bars of the folding lawn chair.
Claim 5
Dependent Claim
32 words
A rocker attachment as claimed in claim 3 wherein the apertures formed in the second leg of said angle member are sized to frictionally and slidably grip said pair of rocker elements.
Claim 6
Dependent Claim
22 words
A rocker attachment as claimed in claim 3 wherein said fastener means comprises a spaced apart pair of upwardly opening spring clips.
Claim 7
Dependent Claim
65 words
A rocker attachment as claimed in claim 1 wherein each of said pair of beam means comprises: (a) a channel beam of U-shaped cross section which is disposed to open upwardly for nestingly receiving one of the transverse bars of the folding lawn chair; and (b) fastener means dependingly mounted on said channel beam for demountable and movable attachment to said pair of rocker elements.
Claim 8
Dependent Claim
22 words
A rocker attachment as claimed in claim 6 wherein said fastener means comprises a spaced apart pair of upwardly opening spring clips.
Claim 9
Dependent Claim
64 words
A rocker attachment as claimed in claim 6 wherein said fastener means comprises a spaced apart pair of tabs mounted on one of the upstanding legs of said channel beam, said pair of tabs each having its lower end depending below said channel beam and each having an aperture formed through its lower end through which one of said pair of rocker elements extends.
Claim 10
Dependent Claim
47 words
A rocker attachment as claimed in claim 6 and further comprising at least one friction pad mounted in said channel beam for frictionally engaging the one of the transverse bars of the lawn chair upon nestable placement thereof within said channel beam to prevent lateral slippage thereof.
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) | 1984-08-24 | 1985-02-23 | 1985-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-24 | 1989-02-23 | 1989-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-24 | 1993-02-23 | 1993-08-25 | $7700.00 | Window Closed / Lapsed |