Locking device for membrane fastener apparatus
US4532744A · kind A · utility
12Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1983 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | Sep 6, 2003 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D5/147
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In an attachment device, comprising a channel member and an insert member, for securing an elastic membrane within the channel member via the insert member, one of the insert and channel members being capable of deformation to permit the insertion of the insert member, together with adjacent portions of the elastic membrane, into the channel member, the improvement, taking the form of a locking device, insertable into the channel member to prohibit the subsequent removal of the elastic membrane by elastic deformation of one of the channel and insert members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.