Patent US3838880A successfully refreshed from Google Patents.
US3838880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding house trailer
Assignee: Individual
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Filing: 1973-03-21
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Granted: 1974-10-01
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Expires: 1993-03-21
Abstract
Abstract A folding house trailer is provided with box-like end sections pivoted on the floor and foldable to nest within each other, the space between them when they are in raised position being enclosed by foldable side walls and a foldable roof. The foldable side walls have provision for being shifted laterally outwardly so that in raised position, they are flush with the outer end sections while in folded position they are nested within the inner end section. The arrangement provides a house trailer which is compact in folded position and very spacious in raised position and which can easily be collapsed or erected.
Inventors
- 👤 J Lefebvre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:25
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/32; B60P3/34; B62; B62D; B62D63/00; B62D63/06; B62D63/061
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
203 words
A folding house trailer comprising: a chassis having a floor mounted thereon; a pair of box-like end sections pivoted on the front and rear portions, respectively, of said floor and dimensioned so that one end section nests within the other end section when said sections are pivoted downwardly against said floor and being spaced apart when pivoted upwardly from said floor to erected position; side walls on opposite sides of said floor and each comprising a lower upright panel mounted on said floor for limited movement thereover between inner and outer positions and an upper panel hinged to the upper edge of its lower panel for pivotal movement inwardly over said floor but spaced upwardly therefrom, said side walls being dimensioned to close the space between erected end sections when in said outer positions and to nest within said one section when said upper panels are pivoted downwardly and said lower panels moved to said inner positions and said end sections are pivoted downwardly; and a roof pivoted to an edge of said other end section to extend between the upper edges of erected end sections and to fold against the outside of said other end section when said sections are pivoted downwardly.
Claim 2
Dependent Claim
203 words
A folding house trailer comprising: a chassis having a floor mounted thereon; a pair of box-like end sections pivoted on the front and rear portions, respectively, of said floor and dimensioned so that one end section nests within the other end section when said sections are pivoted downwardly against said floor and being spaced apart when pivoted upwardly from said floor to erected position; side walls on opposite sides of said floor and each comprising a lower upright panel mounted on said floor for limited movement thereover between inner and outer positions and an upper panel hinged to the upper edge of its lower panel for pivotal movement inwardly over said floor but spaced upwardly therefrom, said side walls being dimensioned to close the space between erected end sections when in said outer positions and to nest within said one section when said upper panels are pivoted downwardly and said lower panels moved to said inner positions and said end sections are pivoted downwardly; and a roof pivoted to an edge of said other end section to extend between the upper edges of erected end sections and to fold against the outside of said other end section when said sections are pivoted downwardly.
Claim 3
Dependent Claim
30 words
A folding house trailer according to claim 1, wherein each lower panel has a box-like structure inwardly thereof, and a link pivoted to said box-like structure and to the floor.
Claim 4
Dependent Claim
38 words
A folding house trailer according to claim 1, wherein said upper panel of one of the side walls has a box hinged thereto dimensioned to support said panel in a horizontal position when the same is folded down.
Claim 5
Dependent Claim
212 words
A folding house trailer comprising: a chassis; a floor mounted on said chassis; foldable box-like end sections provided on said floor dimensioned so that one end section nests within the other end section in folded position and defining a space therebetween in raised position; foldable side walls connected to said floor dimensioned to nest within said one end section in folded position and to enclose said space laterally in raised position; a roof pivoted to one of said end sections dimensioned to cover said space in unfolded position; each foldable side wall comprising a lower panel dimensioned to nest within said one end section in upright position and an upper panel hinged to said lower panel, each loweR panel being slidably mounted between an inward nesting position and an outward position flush with said other end section, each lower panel having a box-like structure in the interior thereof, and a link pivoted to said box-like structure and to the floor; and each lower panel having a lever vertically slidably mounted thereon spaced from the panel at its upper end and dimensioned to engage the floor at one end and the associated upper panel at its upper end to provide a fulcrum for raising said lower panel when said upper panel is folded.
Claim 6
Dependent Claim
212 words
A folding house trailer comprising: a chassis; a floor mounted on said chassis; foldable box-like end sections provided on said floor dimensioned so that one end section nests within the other end section in folded position and defining a space therebetween in raised position; foldable side walls connected to said floor dimensioned to nest within said one end section in folded position and to enclose said space laterally in raised position; a roof pivoted to one of said end sections dimensioned to cover said space in unfolded position; each foldable side wall comprising a lower panel dimensioned to nest within said one end section in upright position and an upper panel hinged to said lower panel, each loweR panel being slidably mounted between an inward nesting position and an outward position flush with said other end section, each lower panel having a box-like structure in the interior thereof, and a link pivoted to said box-like structure and to the floor; and each lower panel having a lever vertically slidably mounted thereon spaced from the panel at its upper end and dimensioned to engage the floor at one end and the associated upper panel at its upper end to provide a fulcrum for raising said lower panel when said upper panel is folded.
Claim 7
Dependent Claim
31 words
A folding house trailer according to claim 4, wherein each link has a projection on its inward face holding said box-like structure in a raised position when in the nesting position.
Claim 8
Dependent Claim
21 words
A folding house trailer according to claim 4, wherein each lever has a wheel at its lower end engaging the flooor.
Claim 9
Dependent Claim
23 words
A folding house trailer according to claim 5, wherein each link has a handle extension beyond its pivotal connection to said box-like structure.
Claim 10
Dependent Claim
22 words
A folding house trailer according to claim 5, wherein said floor has stepped edges receiving the bottom edges of said lower panels.
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) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |