US3960240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tree climbing device
Assignee: Individual
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Filing: 1974-09-16
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Granted: 1976-06-01
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Expires: 1994-09-16
Abstract
Abstract A pair of projecting platforms attached around a tree trunk one above the other are moved up a tree by a person sitting on the uppermost platform and reaching below and pulling the lowermost platform up close to the botton of the uppermost platform and then while standing on the lowermost platform rising from the seat of the uppermost platform and lifting it upwardly behind and then repeating the procedure until the desired height is reached. The uppermost and lowermost platforms both have adjustable tree-engaging frames which are placed around the tree trunk.
Inventors
- 👤 C. W. Cotton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:13
CPC Classifications
A; A63; A63B; A63B27/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
392 words
In a tree climbing device: a top platform having an occupant seat thereon which extends near the front outer edge of said platform and on which an occupant sits facing outwardly from the tree during part of the time that the tree climbing device is being raised to a higher level, a bottom platform mounted on the same side of the tree below said top platform and extending in the same direction in spaced relation thereto, each of said top and bottom platforms projecting substantially coextensively outwardly and each having tree engaging means thereon comprising a means on each side of said tree engageable with the tree by means of the weight of the person to retain said platform thereon, said tree engaging means on each platform being disengageable from the tree by tilting the projecting platform upwardly after relieving the weight thereon, grasping means on each side of said bottom platform for grasping by a person sitting on the top platform on the seat thereon with the person's knees extending around the outer edge of said seat and his feet adjacent the bottom platform thereby causing said platform to engage the tree and remain firmly in place while said person reaches below to the bottom platform and grasps the grasping means to lift the bottom platform and disengage said same from the tree and raise same to a position closer to the top platform, said top platform being raised by said person rising from the edge of said seat on said top platform by straightening the body from a substantially seated position to rise off the top platform seat and thereby relieve the amount of weight of the person on the top platform which is located behind the person between the person and the tree being climbed and then reaching behind to tilt said platform to release same from engagement with said tree and to raise same behind the person's back while the person continues to arch forward with his weight substantially placed upon the bottom platform thereby raising the top platform behind a person's back at a higher level than previously and thereafter again sitting on said seat on top platform to engage same with the tree and repeating the previous operation of raising the lower platform, first one and then the other until the desired height has been attained.
Claim 2
Dependent Claim
392 words
In a tree climbing device: a top platform having an occupant seat thereon which extends near the front outer edge of said platform and on which an occupant sits facing outwardly from the tree during part of the time that the tree climbing device is being raised to a higher level, a bottom platform mounted on the same side of the tree below said top platform and extending in the same direction in spaced relation thereto, each of said top and bottom platforms projecting substantially coextensively outwardly and each having tree engaging means thereon comprising a means on each side of said tree engageable with the tree by means of the weight of the person to retain said platform thereon, said tree engaging means on each platform being disengageable from the tree by tilting the projecting platform upwardly after relieving the weight thereon, grasping means on each side of said bottom platform for grasping by a person sitting on the top platform on the seat thereon with the person's knees extending around the outer edge of said seat and his feet adjacent the bottom platform thereby causing said platform to engage the tree and remain firmly in place while said person reaches below to the bottom platform and grasps the grasping means to lift the bottom platform and disengage said same from the tree and raise same to a position closer to the top platform, said top platform being raised by said person rising from the edge of said seat on said top platform by straightening the body from a substantially seated position to rise off the top platform seat and thereby relieve the amount of weight of the person on the top platform which is located behind the person between the person and the tree being climbed and then reaching behind to tilt said platform to release same from engagement with said tree and to raise same behind the person's back while the person continues to arch forward with his weight substantially placed upon the bottom platform thereby raising the top platform behind a person's back at a higher level than previously and thereafter again sitting on said seat on top platform to engage same with the tree and repeating the previous operation of raising the lower platform, first one and then the other until the desired height has been attained.
Claim 3
Dependent Claim
31 words
The device in claim 1 wherein said platforms each have an upper knife bar at the end and a lower knife bar space therebelow on the other side of the tree.
Claim 4
Dependent Claim
22 words
The device in claim 1: said grasping means comprising an elongated member extending upwardly on said lower platform and handle means thereon.
Claim 5
Dependent Claim
17 words
The device in claim 2, each of said upper knife bars being adjustable for different size trees.
Claim 6
Dependent Claim
15 words
The device in claim 1, wherein: each platform comprising side members and a surface therebetween.
Claim 7
Dependent Claim
18 words
The device in claim 1, wherein: there is a removable wheel on each side of said bottom platform.
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) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |