Permanent spike member for wooden objects
US4762454A · kind A · utility
5Cited by
7References
10Claims
0Family size
Inventor
Key dates
| Filing date | Nov 28, 1984 |
| Grant date | Aug 9, 1988 |
| Priority date | — |
| Expiry date | Nov 28, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B15/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A support spike securely held by and extending from a wooden object. The spike is oriented parallel to the grain of the wooden object and has an elongated shaft. A hollow longitudinal opening is formed in the point end of the spike. The spike is driven into the wooden object to an extent that the hollow opening extends past the point of entry of the spike so that the wood in the hollow opening is compressed securely holding the spike in place. The spike is particularly useful when driven into the base of a Christmas tree in order to provide a means for holding the tree in an upright position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.