Astragal for closure members
US5259143A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1992 |
| Grant date | Nov 9, 1993 |
| Priority date | — |
| Expiry date | Apr 17, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H3/142
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An astragal (10; 310; 410; 510) for attachment between a movable closure member (11; 111; 311; 411; 611) and a fixed surface having a sealing device and having an electrical switching device to signal engagement with an object including a retainer (15; 115; 315; 415; 615) secured to one of the closure member and the fixed surface, an elongate arcuate sealing member (30; 330; 430; 530; 630) for engaging the other of the closure member and the fixed surface when in close proximity, the arcuate sealing member selectively affixed to the retainer, a resilient carrier (45; 345; 445; 545; 645) disposed within said arcuate sealing member, and at least one electrically conductive strip (46; 346; 447; 547; 651) attached to the carrier in unobstructed facing relation to an electrically conductive contact (20; 120; 320; 448; 548; 620) and temporarily movable into engagement with the electrically conductive contact when an object displaces said arcuate sealing member and the resilient carrier to effect electrical contact therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.