Archery bow limb constructed of syntactic foam
US4819608A · kind A · utility
15Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1987 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Aug 24, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41B5/0068
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A laminated archery bow limb has a relatively light weight core consisting of a plurality of hollow micro spheres in a matrix of hard synthetic resin and formed as a tapered strip of "syntactic foam" material with relatively thin facing and backing strips of high tensile and compressive strengths and a high rate of recovery glued to opposite sides thereof. In a second form of bow limb construction the core material further includes, in addition to the hollow micro spheres, reinforcing fibres to increase the physical strength thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.