Compound archer bow
US3993039A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1975 |
| Grant date | Nov 23, 1976 |
| Priority date | — |
| Expiry date | Mar 10, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S273/07
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An archery apparatus including a mechanism for storing and releasing energy in multiple directions along the limbs of a limb and hand grip assembly. The mechanism for storing and releasing energy are elongated members running longitudinally of the bow limbs and on different sides of the limbs. An archery apparatus including composite eccentric members and sheaves which effect coordinated changes in direction of energy storage and release. The eccentric members are positioned adjacent the bow handle and rotate when tension is applied to the bow string, the latter being connected to the energy storing and releasing device. Sheaves may be drivingly connected to each other and to the eccentric members so that the bow limbs will deflect equally when a tension force is applied to the bow string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.