Patent US3701510A successfully refreshed from Google Patents.
US3701510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevational positioning and supporting device
Assignee: Individual
•
Filing: 1970-09-14
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Granted: 1972-10-31
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Expires: 1990-09-14
Abstract
Abstract An elevational positioning and supporting device for mounting and demounting a camper on the bed of a pickup truck or the like providing a plurality of spaced substantially upright support legs having a plurality of elongated flexible tension members suspended therefrom in supporting relation to the camper with actuating means on the camper engageable with the tension members to vary their effective lengths slidably to raise and lower the camper on the support legs and counterbalancing means operably associated with the actuating means to overcome the force of gravity acting upon the camper to maintain it in any desired elevational position on the support legs throughout its entire range of movement thereon.
Inventors
- 👤 James Rollin Logan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:51
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/64; B60P1/6418; B60P1/6427; B66; B66F; B66F7/00; B66F7/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
185 words
An elevational positioning and supporting device for mounting and demounting a camper on the bed of a pickup truck comprising a front and a rear sleeve mounted in erect positions on opposite sides of the camper; support legs slidably mounted in the sleeves having lower ends disposed for ground engagement and upper ends disposed above their respective sleeves; a shaft rotatably mounted transversely on the camper rearwardly adjacent to the front sleeves; a front sheave rigidly mounted on the shaft adjacent to each of the front sleeves; a rear sheave rotatably mounted on the camper forwardly adjacent to each of the rear sleeves; a cable connected to the upper end of each leg in each front sleeve, extended downwardly under its respectively adjacent front sheave and secured thereto; a cable connected to the upper end of each leg in each rear sleeve, extended downwardly about its respectively adjacent rear sheave, thence forwardly over the front sheave on the same side of the camper and secured to said front sheave; and means for rotating the shaft to raise and to lower the camper on the legs.
Claim 2
Dependent Claim
185 words
An elevational positioning and supporting device for mounting and demounting a camper on the bed of a pickup truck comprising a front and a rear sleeve mounted in erect positions on opposite sides of the camper; support legs slidably mounted in the sleeves having lower ends disposed for ground engagement and upper ends disposed above their respective sleeves; a shaft rotatably mounted transversely on the camper rearwardly adjacent to the front sleeves; a front sheave rigidly mounted on the shaft adjacent to each of the front sleeves; a rear sheave rotatably mounted on the camper forwardly adjacent to each of the rear sleeves; a cable connected to the upper end of each leg in each front sleeve, extended downwardly under its respectively adjacent front sheave and secured thereto; a cable connected to the upper end of each leg in each rear sleeve, extended downwardly about its respectively adjacent rear sheave, thence forwardly over the front sheave on the same side of the camper and secured to said front sheave; and means for rotating the shaft to raise and to lower the camper on the legs.
Claim 3
Dependent Claim
38 words
The device of claim 1 including energy storing means connected to the shaft and urging the shaft in the rotational direction to tension the cables and counterbalance the weight of the camper substantially equally on opposite sides thereof.
Claim 4
Dependent Claim
48 words
The device of claim 1 for campers having forward ends and pickup trucks having sides of predetermined height in which the shaft is mounted in the camper adjacent to its front end and at an elevation above the sides of the truck when the camper is mounted therein.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |