Coupling formation for the interfitting of structural elements
US4373306A · kind A · utility
32Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1980 |
| Grant date | Feb 15, 1983 |
| Priority date | — |
| Expiry date | Feb 5, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B5/07
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A structural element, such as a section of a duckboard (e.g. a landing mat) to be removably fastened to a similar section, has one or more edges provided with male coupling formations adapted to be converted into complementary female formations by breaking off a projecting part thereof. The projecting part is generally T-shaped, with its frangible stem rising from the bottom of a preferably dovetail-shaped recess. Such an element can therefore be readily joined to another element having a mortise complementary to the head of the T or a tenon complementary to the recess.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.