Patent US3941415A successfully refreshed from Google Patents.
US3941415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible living enclosure
Assignee: Individual
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Filing: 1974-07-24
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Granted: 1976-03-02
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Expires: 1994-07-24
Abstract
Abstract A mobile rectangular base constituted by a motor home, trailer, or the like is overlain by a congruent cover. A foldable post is provided extending between each corner of the cover and the corresponding corner of the base so that when unfolded they rigidly support the cover well above the base. Walls constituted by a plurality of rigid panels can be pulled from the base or from the cover and slid along guides on the posts to enclose the structure. Hydraulic cylinders are provided to fold and unfold the posts so as to lower and raise the cover. When the walls are locked in place the entire assembly is rigid and self-supporting.
Inventors
- 👤 Herbert Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:04
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/32; B60P3/34
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
340 words
A mobile living enclosure comprising: a generally polygonal mobile base having two pairs of sides meeting at corners; a cover substantially congruent to said base and having a downwardly projecting lip engageable over and around said base; at least a pair of two foldable posts each post having a laterally open and elongated channel-shaped lower section with a lower end pivoted on said base at a respective corner thereof, a laterally open and elongated channel-shaped upper section having an upper end pivoted on said cover at the corresponding corner thereof, and a connecting pivot between the upper end of said lower section and the lower end of said upper section, said upper and lower sections of each post being pivotally displaceable between an extended position forming a straight channel guide extending between said base and said cover and opening laterally toward the other post and a folded position with said sections generally parallel and opening laterally in opposite directions; erecting means for each pair of posts including an extensible element having one end connected to one of said posts of the respective pair adjacent said connecting pivot thereof and another end connected to said other post of the respective pair adjacent the said connecting pivot thereof for displacing said posts between said folded position with said cover lying snugly over said base and fully enclosing said posts and said extended position with said cover spaced above said base and supported by said posts; a retractable wall for each of said pairs of posts and formed of at least one rigid panel having opposite end edges, said walls each being displaceable between a closed position extending from a respective side of said cover to the corresponding side of said base with said end edges engaged in said channel guides in the extended positions of said posts and a retracted position permitting bending of said posts into said folded positions, whereby in said closed position of said walls said posts are prevented by said walls from being displaced into said folded positions.
Claim 2
Dependent Claim
340 words
A mobile living enclosure comprising: a generally polygonal mobile base having two pairs of sides meeting at corners; a cover substantially congruent to said base and having a downwardly projecting lip engageable over and around said base; at least a pair of two foldable posts each post having a laterally open and elongated channel-shaped lower section with a lower end pivoted on said base at a respective corner thereof, a laterally open and elongated channel-shaped upper section having an upper end pivoted on said cover at the corresponding corner thereof, and a connecting pivot between the upper end of said lower section and the lower end of said upper section, said upper and lower sections of each post being pivotally displaceable between an extended position forming a straight channel guide extending between said base and said cover and opening laterally toward the other post and a folded position with said sections generally parallel and opening laterally in opposite directions; erecting means for each pair of posts including an extensible element having one end connected to one of said posts of the respective pair adjacent said connecting pivot thereof and another end connected to said other post of the respective pair adjacent the said connecting pivot thereof for displacing said posts between said folded position with said cover lying snugly over said base and fully enclosing said posts and said extended position with said cover spaced above said base and supported by said posts; a retractable wall for each of said pairs of posts and formed of at least one rigid panel having opposite end edges, said walls each being displaceable between a closed position extending from a respective side of said cover to the corresponding side of said base with said end edges engaged in said channel guides in the extended positions of said posts and a retracted position permitting bending of said posts into said folded positions, whereby in said closed position of said walls said posts are prevented by said walls from being displaced into said folded positions.
Claim 3
Dependent Claim
18 words
The enclosure defined in claim 1 wherein said extensible element is a fluid-operated cylinder connected to said posts.
Claim 4
Dependent Claim
27 words
The enclosure defined in claim 1 wherein said wall is formed of a plurality of such rigid panels and has at least one hinge interconnecting said panels.
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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) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |