Patent US4049310A successfully refreshed from Google Patents.
US4049310A
Expired / Lapsed
US
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Recreational vehicle with expansible section
Assignee: Individual
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Filing: 1975-12-22
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Granted: 1977-09-20
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Expires: 1995-12-22
Abstract
Abstract A recreational vehicle with an expansible section is provided with means accommodating extension and retraction of the section with minimum physical exertion, means to guide the movement of the expansible section to prevent binding and improper positioning thereof, and means effectively sealing the vehicle body at the extension-receiving opening thereof in both extended and retracted positions of the expansible section.
Inventors
- 👤 Perry E. Yoder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:33
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/32; B60P3/34
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
231 words
A recreational vehicle having a body including a floor and a side wall having an opening, an extension unit having an outer wall, a top wall, a floor and opposite end walls and shiftable in said body opening between a retracted position with its outer wall substantially flush with said vehicle side wall and an extended position projecting outwardly from said vehicle side wall, means for limiting outward movement of said extension unit, means for sealing said vehicle at said opening in the extended and retracted positions of said extension unit, a plurality of rollers supporting the floor of said extension unit at a plurality of points spaced laterally and longitudinally of the vehicle to accommodate movement between cantilevered extended position and retracted position, and means for guiding movement of said extension unit and preventing downward tilting of the outer part of said unit when in cantilevered extended position, some of said rollers being located adjacent the vehicle side wall to support a central portion of the floor of the extension unit, struts secured to and extending below inner corners of the floor of the extension unit toward said vehicle floor and each journaling a roller, said guide means including tracks carried by the floor of said extension unit engaging the rollers located adjacent to the vehicle side wall and having configurations complementary to the configurations of the rollers engaged thereby.
Claim 2
Dependent Claim
231 words
A recreational vehicle having a body including a floor and a side wall having an opening, an extension unit having an outer wall, a top wall, a floor and opposite end walls and shiftable in said body opening between a retracted position with its outer wall substantially flush with said vehicle side wall and an extended position projecting outwardly from said vehicle side wall, means for limiting outward movement of said extension unit, means for sealing said vehicle at said opening in the extended and retracted positions of said extension unit, a plurality of rollers supporting the floor of said extension unit at a plurality of points spaced laterally and longitudinally of the vehicle to accommodate movement between cantilevered extended position and retracted position, and means for guiding movement of said extension unit and preventing downward tilting of the outer part of said unit when in cantilevered extended position, some of said rollers being located adjacent the vehicle side wall to support a central portion of the floor of the extension unit, struts secured to and extending below inner corners of the floor of the extension unit toward said vehicle floor and each journaling a roller, said guide means including tracks carried by the floor of said extension unit engaging the rollers located adjacent to the vehicle side wall and having configurations complementary to the configurations of the rollers engaged thereby.
Claim 3
Dependent Claim
39 words
A vehicle as defined in claim 1, wherein said guide means also include a pair of parallel tracks mounted on the vehicle floor and each having a top flange, said strut journaled rollers engaging said tracks under said flanges.
Claim 4
Dependent Claim
211 words
A recreational vehicle having a body including a floor and a side wall having an opening, an extension unit having an outer wall, a top wall, a floor and opposite end walls and shiftable in said body opening between a retracted position with its outer wall substantially flush with said vehicle side wall and an extended position projecting outwardly from said vehicle side wall, means for limiting outward movement of said extension unit, means for sealing said vehicle at said opening in the extended and retracted positions of said extension unit, a plurality of rollers supporting the floor of said extension unit at a plurality of points spaced laterally and longitudinally of the vehicle to accommodate movement between cantilevered extended position and retracted position, and means for guiding movement of said extension unit and preventing downward tilting of the outer part of said unit when in cantilevered extended position, said guide means including a pair of rigid parallel guide members carried by the vehicle and positioned below the vehicle floor, a pair of rigid elongated members each shiftable parallel to and along a guide member and supported by said guide member, each of said last named members having an upward projection fixedly secured to the outer wall of said extension unit.
Claim 5
Dependent Claim
211 words
A recreational vehicle having a body including a floor and a side wall having an opening, an extension unit having an outer wall, a top wall, a floor and opposite end walls and shiftable in said body opening between a retracted position with its outer wall substantially flush with said vehicle side wall and an extended position projecting outwardly from said vehicle side wall, means for limiting outward movement of said extension unit, means for sealing said vehicle at said opening in the extended and retracted positions of said extension unit, a plurality of rollers supporting the floor of said extension unit at a plurality of points spaced laterally and longitudinally of the vehicle to accommodate movement between cantilevered extended position and retracted position, and means for guiding movement of said extension unit and preventing downward tilting of the outer part of said unit when in cantilevered extended position, said guide means including a pair of rigid parallel guide members carried by the vehicle and positioned below the vehicle floor, a pair of rigid elongated members each shiftable parallel to and along a guide member and supported by said guide member, each of said last named members having an upward projection fixedly secured to the outer wall of said extension unit.
Claim 6
Dependent Claim
78 words
A vehicle as defined in claim 1, wherein said vehicle body includes a pair of spaced longitudinal floor supporting frame members, said guide means including a pair of spaced parallel rigid guide tubes anchored to said frame members below said vehicle floor and terminating adjacent said vehicle side wall, and a rigid tube having a telescoping sliding and guiding fit in each guide tube and having an upward projection secured to the outer wall of said extension unit.
Claim 7
Dependent Claim
94 words
A vehicle as defined in claim 1, wherein said guide means include a pair of rigid parallel guide tubes secured to said vehicle body below the floor thereof, a rigid tube having a telescopic fit in each guide tube and an upward projection secured to the outer wall of said extension unit, anti-friction slide blocks mounted within each guide tube at its outer end and engaged by the last named tube fitting therein, and an anti-friction block carried by the inner end of each last named tube and slidable in the cooperating guide tube.
Claim 8
Dependent Claim
44 words
A vehicle as defined in claim 5, wherein a flexible extensible sleeve is anchored to the free end of each guide tube and to the cooperating telescoped tube adjacent its upward projection, said sleeve encircling the portion of said tubes between said anchored ends.
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) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |