Patent FR467036A successfully refreshed from Google Patents.
Patent US3885826A successfully refreshed from Google Patents.
US3885826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camper vehicle with movable top
Assignee: Rockwood Inc
•
Filing: 1972-12-22
•
Granted: 1975-05-27
•
Expires: 1992-12-22
Abstract
Abstract An expandable recreational vehicle has a body and a separate elevatable top which is raised by a lifting mechanism including four telescopic posts, each moved by a transversely bendable push rod. Each of a pair of push rod actuators includes a pair of parallel co-terminus hollow tubes with a run of an endless chain in each tube, and a drive for the chain. Each push rod is connected to one of the runs of the chain in one embodiment, each run of the chain supports a connector in spaced parallel relation to the chain, to which the push rod is connected, and in another embodiment two chains are used connected in end-to-end relationship by a connector including a spur to which the push rod is connected. The upper portions of each push rod extend into a telescopic post, and engage a spacer member in the uppermost post section, the spacer member being adjustably secured therein to provide for adjustment of the mechanism. A guide for the telescopic post sections includes a deformable plastic hollow member which has outstanding lugs received in apertures in a post section of large transverse diameter.
Inventors
- 👤 Omer G Kropf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:10
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/32; B60P3/34
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
130 words
A vehicle having a body and a top vertically movable between positions elevated above and adjacent to said body, a pair of transversely flexible push rods each having a generally horizontal portion, an intermediate curved portion and a generally vertical portion, means for connecting said vertical portions to said top, means for guiding each push rod during movement thereof in a predetermined path, each said push rod having a lower end and said horizontal portions extending in opposite directions therefrom, and reversible means for moving said lower ends simultaneously, equally and oppositely comprising endless flexible chain means having a first run and a second run, means connecting the lower end of each said push rod to a said run, and means for driving said chain means selectively in either direction.
Claim 2
Dependent Claim
130 words
A vehicle having a body and a top vertically movable between positions elevated above and adjacent to said body, a pair of transversely flexible push rods each having a generally horizontal portion, an intermediate curved portion and a generally vertical portion, means for connecting said vertical portions to said top, means for guiding each push rod during movement thereof in a predetermined path, each said push rod having a lower end and said horizontal portions extending in opposite directions therefrom, and reversible means for moving said lower ends simultaneously, equally and oppositely comprising endless flexible chain means having a first run and a second run, means connecting the lower end of each said push rod to a said run, and means for driving said chain means selectively in either direction.
Claim 3
Dependent Claim
25 words
The vehicle of claim 1, said means for driving said chain means comprising sprocket means, and means including a shaft for driving said sprocket means.
Claim 4
Dependent Claim
46 words
The vehicle of claim 1, said chain means comprising a single chain, lug means extending transversely from said chain, a connector supported by said lug means in spaced, parallel relation to said chain means, and means for securing said push rod lower end to said connector.
Claim 5
Dependent Claim
39 words
The vehicle of claim 3, said lug means comprising a first pair of lugs and a second pair of lugs spaced from said first pair of lugs, said connector comprising a rigid bar overlying plural links of said chain.
Claim 6
Dependent Claim
62 words
The vehicle of claim 1, said chain means comprising a first chain and a second chain in series comprIsing a pair of spaced bars each pivotally connected to an adjacent end of said first and second chains, and a spur connector element carried by each said bar, each of said push rod lower ends being connected to a said spur connector element.
Claim 7
Dependent Claim
16 words
The vehicle of claim 5, each said spur connector element being integral with a said bar.
Claim 8
Dependent Claim
39 words
The vehicle of claim 1, a pair of spaced sprockets supporting said chain means, and a pair of spaced, parallel, linearly extending hollow housings extending between said sprockets, each said housing having a run of said chain means therein.
Claim 9
Dependent Claim
14 words
The vehicle of claim 7, and means for adjusting the spacing between said sprockets.
Claim 10
Dependent Claim
47 words
The vehicle of claim 8, wherein one said sprocket has a supporting shaft, said adjusting means comprising means for supporting said sprocket shaft, anchor means secured to at least one of said housings, and means for moving said sprocket shaft support means relative to said anchor means.
Claim 11
Dependent Claim
22 words
The vehicle of claim 9, said adjusting means comprising a slide member between said housings connected to said sprocket shaft supporting means.
Claim 12
Dependent Claim
52 words
The vehicle of claim 1, said vehicle including a pair of telescopic posts each comprising a first lower section and a second upper section fixed to said top, a push rod vertical section extending in said telescopic post, and means connecting the upper end of said push rod to said second section.
Claim 13
Dependent Claim
43 words
The vehicle of claim 11, said last mentioned means comprising a linearly extending spacer member in said second section, means securing said spacer member in said second section, said push rod having an upper end abutting the lower end of said spacer member.
Claim 14
Dependent Claim
24 words
The vehicle of claim 12, wherein said securing means comprises a fastener extending transversely of said telescopic post second section and said spacer member.
Claim 15
Dependent Claim
12 words
The vehicle of claim 13, wherein said fastener extends through said top.
Claim 16
Dependent Claim
82 words
The vehicle of claim 11, wherein each said telescopic post lower section is of relatively large transverse dimension and telescopically receives a second section of relatively smaller transverse dimension, and guide means in said lower section upper end comprising a hollow member having lug means extending transversely thereof, said upper end having aperture means receiving said lug means, said hollow member having an inner dimension and shape for slidably receiving said second section therein, said guide means being of low-friction, distortable material.
Claim 17
Dependent Claim
15 words
The vehicle of claim 1, and further comprising locking means for said chain driving means.
Claim 18
Dependent Claim
23 words
The vehicle of claim 1, said chain driving means comprising a shaft having a sprocket thereon, and releasable locking means engaging said sprocket.
Claim 19
Dependent Claim
26 words
The vehicle of claim 17, said locking means comprising a movable detent engageable with said sprocket, and means for moving said detent to a release position.
Claim 20
Dependent Claim
115 words
A vehicle having a body and a top vertically movable between positions elevated above and adjacent to said body, telescopic posts having plural sections comprising a lower first section of relatively large transverse dimension and telescopically receiving a second section of relatively smaller transverse dimension connected to said top, means for moving said second section relative to said first section to thereby elevate said top, said moving means comprising a transversely flexible push rod having an end portion extending into said post, a linearly extending spacer member in said second section, means securing said spacer member in said second section, said push rod having an upper end abutting the lower end of said spacer member.
Claim 21
Dependent Claim
115 words
A vehicle having a body and a top vertically movable between positions elevated above and adjacent to said body, telescopic posts having plural sections comprising a lower first section of relatively large transverse dimension and telescopically receiving a second section of relatively smaller transverse dimension connected to said top, means for moving said second section relative to said first section to thereby elevate said top, said moving means comprising a transversely flexible push rod having an end portion extending into said post, a linearly extending spacer member in said second section, means securing said spacer member in said second section, said push rod having an upper end abutting the lower end of said spacer member.
Claim 22
Dependent Claim
21 words
The structure of claim 19, said securing means comprising a fastener extending transversely of said second section and said spacer member.
Claim 23
Dependent Claim
11 words
The structure of claim 20, said fastener extending through said top.
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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |