Patent US3875952A successfully refreshed from Google Patents.
US3875952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tent
Assignee: Individual
•
Filing: 1974-08-05
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Granted: 1975-04-08
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Expires: 1994-08-05
Abstract
Abstract The tent has a central post, a truncated conical wall of fabric with a ring at the bottom and a rim of smaller diameter at the top. A conical top of fabric, lucite or other plastic material which functions as a skylight, is supported above the top rim. Entrance to and from the tent may be provided by a door or by a plurality of ropes disposed along the inside of the fabric by which the ring of greater diameter at the bottom may be pulled upwardly from the inside or outside to expose the interior of the tent.
Inventors
- 👤 John O Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:51
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/26; E04H15/32; E04H15/322
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
143 words
In a tent, a central pole having a reduced top end extension, a rim having cross members supported on the top end of the pole, a free bottom ring enclosing a greater area than the rim, fabric connected to the rim and to the ring forming a truncated conical wall therebetween, a plurality of lengths of rope within the tent secured to the bottom ring, pulleys on the inner and outer ends of the cross members over which the ropes pass to be adjacent to the pole, a flanged sleeve slidable on said pole with the ropes secured to the flange, and a pair of ropes supported on said sleeve the downward pull on which moves the plurality of ropes downwardly along the pole to thereby raise the bottom ring and the fabric forming the tent wall upwardly to expose the tent interior.
Claim 2
Dependent Claim
143 words
In a tent, a central pole having a reduced top end extension, a rim having cross members supported on the top end of the pole, a free bottom ring enclosing a greater area than the rim, fabric connected to the rim and to the ring forming a truncated conical wall therebetween, a plurality of lengths of rope within the tent secured to the bottom ring, pulleys on the inner and outer ends of the cross members over which the ropes pass to be adjacent to the pole, a flanged sleeve slidable on said pole with the ropes secured to the flange, and a pair of ropes supported on said sleeve the downward pull on which moves the plurality of ropes downwardly along the pole to thereby raise the bottom ring and the fabric forming the tent wall upwardly to expose the tent interior.
Claim 3
Dependent Claim
23 words
A tent as recited in claim 1, wherein the sleeve has a pair of eyes to which the pair of ropes are secured.
Claim 4
Dependent Claim
52 words
A tent as recited in claim 2, wherein a pair of pulleys are provided at the bottom of the pole through which the pair of ropes pass to extend outwardly beyond the ring so that the sleeve may be drawn downwardly to raise the tent from either the outside or inside thereof.
Claim 5
Dependent Claim
22 words
A tent as recited in claim 1, wherein the plurality of rope lengths are four in number and spaced equal distances apart.
Claim 6
Dependent Claim
42 words
A tent as recited in claim 1, wherein a conical fabric section is secured over a rod extending from the reduced end portion of the post and to the wall fabric on the rim to enclose the top opening of the tent.
Claim 7
Dependent Claim
30 words
A tent as recited in claim 5, wherein the conical portion covering the top opening is made of transparent material to provide illumination to the tent interior during the day.
Claim 8
Dependent Claim
16 words
A tent as recited in claim 5, wherein the rim and ring are of circular formation.
Claim 9
Dependent Claim
39 words
A tent as recited in claim 4, wherein a pair of winch drums are provided at the bottom of the pole engaged by the pair of ropes, and motor means for driving the drums in either direction of rotation.
Claim 10
Dependent Claim
38 words
A tent as recited in claim 8, wherein a circuit having a three-way system containing a pair of switches which are positioned on the interior and outside of the tent respectively for operating the motor in either direction.
Claim 11
Dependent Claim
25 words
A tent as recited in claim 9, wherein reversing switches are provided for reversing the direction of motor operation at the end of each operation.
References Cited (Backward Citations)
US321722A
Cited
US618367A
Cited
US1322149A
Cited
US645890A
Cited
US1072340A
Cited
US1857368A
Cited
US2167219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |