Pump jack tree stand
US7971685B2 · kind B2 · utility
7Cited by
24References
21Claims
0Family size
Inventors
Key dates
| Filing date | Feb 1, 2007 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Dec 18, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01M31/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention comprises, in one form thereof, a pump jack tree stand including a platform and a seat engaging a pump jack. The pump jack cooperates with a pole that is supported by an adjacent tree. The user actuates a foot lever on the pump jack to climb the pole. The pump jack's release is hand actuated as opposed to the commonly used foot-actuated release.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.