Static structures (e.g. – buildings) – Disparate sheet lamina between exposed surfaces of wall,... – Tie crossing dividing lamina
Patent
1987-01-27
1988-05-17
Ridgill, Jr., James L.
Static structures (e.g., buildings)
Disparate sheet lamina between exposed surfaces of wall,...
Tie crossing dividing lamina
52512, 52513, 52746, 52747, 24141, 411179, 411542, E04D 336
Patent
active
047441879
ABSTRACT:
A mechanical fastener for securing a flexible sheet of an elastomeric material to the upper surface of a roof via the use of a plurality of such fasteners, each of which include upper and lower retaining members, wherein the latter are anchored to the roofing surface. Both of the retaining members are formed with a series of annular concentric ridges and grooves which cooperate with each other to form a series of annular gripping zones with the elastomeric sheet when the upper retainer is drawn into a clamping relationship with the botton retainer by a threaded fastener. The fastener is engaged with an internally threaded central boss formed on the lower retainer. A sharp bottom edge of the fastener cuts an aperture in the elastomeric sheet prior to engagement with the threaded boss. The fastener has a frangible portion which separates upon a predetermined clamping force being exerted on the membrane by the retainers which also retards unauthorized removal of the fastener once the retaining members are in the clamped relationship. A method for securing the flexible sheet to the roofing also is presented.
REFERENCES:
patent: 998511 (1911-07-01), Heron
patent: 3286577 (1966-11-01), Weidner
patent: 3918233 (1975-11-01), Simpson
patent: 4074501 (1978-02-01), Sandqvist
patent: 4078351 (1978-03-01), Simpson
patent: 4124050 (1978-11-01), Ackerman
patent: 4467581 (1984-08-01), Francovitch
patent: 4476660 (1984-10-01), Francovitch
patent: 4502256 (1985-03-01), Hahn
patent: 4519175 (1985-05-01), Resan
patent: 4520606 (1985-06-01), Francovitch
patent: 4545270 (1985-10-01), Dewey
patent: 4603422 (1986-12-01), Beneze
patent: 4620402 (1986-11-01), Beneze
patent: 4662806 (1987-05-01), Reed
Ridgill, Jr. James L.
Ruf Ernst H.
The Firestone Tire & Rubber & Company
LandOfFree
Mechanical roof fastener does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mechanical roof fastener, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanical roof fastener will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1874351