US4117627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable stand
Assignee: Individual
•
Filing: 1977-06-03
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Granted: 1978-10-03
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Expires: 1997-06-03
Abstract
Abstract A freely rotatable, effectively tilt-free stand for carrying plants and the like. The stand includes a plurality of relatively rotatable members cooperatively defining a ball bearing structure wherein the ball bearings are disposed in an annular array at the periphery of the assembly so as to provide an effectively tilt-free rotation thereof. Support of the structure relative to the bearings is effected by metallic bearing plates which may be adhesively secured to other elements of the structure. The base member may have a lateral extent substantially greater than that of the rotatable portions to provide further tilt-free stability.
Inventors
- 👤 Henry H. Slingerland, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:47
CPC Classifications
A; A47; A47G; A47G7/00; A47G7/02; A47G7/04; A47G7/041
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
181 words
A freely rotatable, effectively tilt-free plant stand comprising: a base member; a metal lower bearing plate facially adhesively secured to said base member and having a small central opening; a ball race plate formed of wood facially superposed to said lower bearing plate and having an annular array of circumferentially spaced peripheral through holes; a metal upper bearing plate facially superposed to said ball race plate and having a small central opening; a plurality of ball bearings received one each in said holes and having a diameter greater than the thickness of said ball race plate to have rolling engagement with each of said lower and upper bearing plates; an axle member fixedly secured to said base member and projecting upwardly therefrom freely through said lower bearing plate opening, said ball race plate coaxially of said annular array, and said upper bearing plate opening for maintaining free coaxial rotatability of said upper bearing plate on said ball bearings in said annular array; and a mounting plate facially adhesively secured to said upper bearing plate for rotation therewith coaxially of said array.
Claim 2
Dependent Claim
181 words
A freely rotatable, effectively tilt-free plant stand comprising: a base member; a metal lower bearing plate facially adhesively secured to said base member and having a small central opening; a ball race plate formed of wood facially superposed to said lower bearing plate and having an annular array of circumferentially spaced peripheral through holes; a metal upper bearing plate facially superposed to said ball race plate and having a small central opening; a plurality of ball bearings received one each in said holes and having a diameter greater than the thickness of said ball race plate to have rolling engagement with each of said lower and upper bearing plates; an axle member fixedly secured to said base member and projecting upwardly therefrom freely through said lower bearing plate opening, said ball race plate coaxially of said annular array, and said upper bearing plate opening for maintaining free coaxial rotatability of said upper bearing plate on said ball bearings in said annular array; and a mounting plate facially adhesively secured to said upper bearing plate for rotation therewith coaxially of said array.
Claim 3
Dependent Claim
22 words
The freely rotatable, effectively tilt-free plant stand of claim 1 wherein said bearing plates and ball race plate comprise congruent circular discs.
Claim 4
Dependent Claim
20 words
The freely rotatable, effectively tilt-free plant stand of claim 1 wherein said axle projects upwardly from said upper bearing plate.
Claim 5
Dependent Claim
48 words
The freely rotatable, effectively tilt-free plant stand of claim 1 wherein said mounting plate defines an upper surface, said axle projects upwardly from said upper bearing plate and through said mounting plate to terminate at its upper end substantially flush with said upper surface of the mounting plate.
Claim 6
Dependent Claim
20 words
The freely rotatable, effectively tilt-free plant stand of claim 1 wherein said axle extends partially downwardly through said base plate.
Claim 7
Dependent Claim
25 words
The freely rotatable, effectively tilt-free plant stand of claim 1 wherein each of said base member and plates defines parallel upper and bottom flat surfaces.
Claim 8
Dependent Claim
27 words
The freely rotatable, effectively tilt-free plant stand of claim 1 wherein said ball race plate, upper bearing plate, and mounting plate are freely rotatable about said axle.
Claim 9
Dependent Claim
36 words
The freely rotatable, effectively tilt-free plant stand of claim 1 wherein said base member comprises a disc member, and said plates comprise congruent disc elements having a diameter smaller than the diameter of said base member.
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) | 1981-10-02 | 1982-04-03 | 1982-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-02 | 1986-04-03 | 1986-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-02 | 1990-04-03 | 1990-10-03 | $7700.00 | Window Closed / Lapsed |