Patent US3661229A successfully refreshed from Google Patents.
US3661229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leveling device
Assignee: Individual
•
Filing: 1970-11-09
•
Granted: 1972-05-09
•
Expires: 1990-11-09
Abstract
Abstract A leveling device adapted to be placed beneath the wheels of a camper trailer or the like providing a tapered supporting block having an upper, inclined, wheel supporting ramp surface and a tapered wheel positioning block adjustably mounted on said supporting block having an upper surface oppositely inclined from said ramp surface of the supporting block in angularly facing cradling relation to the wheel of the trailer.
Inventors
- 👤 James H Stonhaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:25
CPC Classifications
B; B60; B60T; B60T3/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
67 words
A leveling device, adapted to be placed beneath the wheels of a camper trailer or the like, comprising a tapered supporting block having an inclined upper wheel supporting ramp surface; and a tapered wheel positioning block adjustably mountable on Said supporting block providing an upper surface oppositely inclined from said ramp surface of said supporting block in angularly facing cradling relation to the wheel of the trailer.
Claim 2
Dependent Claim
67 words
A leveling device, adapted to be placed beneath the wheels of a camper trailer or the like, comprising a tapered supporting block having an inclined upper wheel supporting ramp surface; and a tapered wheel positioning block adjustably mountable on Said supporting block providing an upper surface oppositely inclined from said ramp surface of said supporting block in angularly facing cradling relation to the wheel of the trailer.
Claim 3
Dependent Claim
37 words
The leveling device of claim 1 including means releasably locking said positioning block on said supporting block to preclude relative sliding movement therebetween for maintaining their upper surfaces in said angularly facing cradling relation to the wheel.
Claim 4
Dependent Claim
16 words
The leveling device of claim 2 in which said blocks are of a generally triangular configuration.
Claim 5
Dependent Claim
55 words
The leveling device of claim 3 in which each of said blocks has a lower base surface somewhat longer than said upper surface thereof at one end of the block and converging therewith to form a relatively thin edge, and an opposite end providing a relatively steeply inclined surface interconnecting said upper and lower surfaces.
Claim 6
Dependent Claim
74 words
The leveling device of claim 4 in which said locking means includes a plurality of serrations on said upper ramp surface of the supporting block, and a plurality of substantially similar serrations on the lower base surface of said positioning block which are adapted to intermesh and permit locking assembly of the positioning block in a wide variety of wheel cradling positions upwardly and downwardly along said upper ramp surface of the supporting block.
Claim 7
Dependent Claim
37 words
The leveling device of claim 5 including a plurality of serrations formed on the other of said upper, lower and end surfaces of said blocks to permit locking engagement between the blocks in any desired indexed relation.
Claim 8
Dependent Claim
19 words
The leveling device of claim 6 in which said serrations are formed transversely of the taper of the blocks.
Claim 9
Dependent Claim
30 words
The leveling device of claim 7 in which the blocks are separable for disposing their respective steeply inclined surfaces individually against opposite sides of the wheel on relatively level terrain.
Claim 10
Dependent Claim
20 words
The leveling device of claim 8 in which said supporting block is approximately twice as long as the positioning block.
References Cited (Backward Citations)
US2413744A
Cited
US2954101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |