Security grille and manufacturing method

Details Security grille and manufacturing method Security grille and manufacturing method

1988-06-03

1989-11-21

Scherbel, David A.

Static structures (e.g., buildings)

Openwork; e.g., truss, trellis, grille, screen, frame, or...

Fabric or lattice; e.g., indeterminate grating

52507, 403174, 403218, 49 50, E04C 238, E04C 242

Patent

active

048813540

ABSTRACT:
A security grille is disclosed in which corresponding ends of rods, preferably of square cross-sectional shape, are clamped by initially-separate halves of clamps. The halves of each clamp become connected permanently to one another by a nub/bolt combination, wherein the nut has a drive head which shears off when the connection has been properly made. In one embodiment, the clamp halves are made by drop-stamping and the rods are made from hot-rolled steel bars. Alternatively, the clamp halves may be made as pressings and the rods may be made from cold-drawn steel bars. The clamp halves are provided with decorative covers.

REFERENCES:
patent: 1147100 (1915-07-01), Rietzel
patent: 1240025 (1917-09-01), Carson
patent: 2018539 (1935-10-01), Welsh
patent: 3323820 (1967-06-01), Braccini
patent: 3512447 (1970-05-01), Vaughn
patent: 4037515 (1977-07-01), Kesselman
patent: 4038800 (1977-08-01), Daley, Jr.
patent: 4432162 (1984-02-01), Foote
patent: 4615142 (1986-10-01), Reeves
patent: 4723388 (1988-02-01), Zieg

Affiliated with

Also associated with

Rating

Security grille and manufacturing method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Security grille and manufacturing method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Security grille and manufacturing method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1419342