Stock material or miscellaneous articles – All metal or with adjacent metals – Width or thickness variation or marginal cuts repeating...
Patent
1993-02-11
1994-04-12
Zimmerman, John
Stock material or miscellaneous articles
All metal or with adjacent metals
Width or thickness variation or marginal cuts repeating...
428575, 428595, 428596, 428600, 494901, E06B 722, E06B 7232
Patent
active
053024664
ABSTRACT:
A continuous strip of sheet metal is progressively sheared with longitudinally spaced and laterally extending slits to form opposing U-shaped tabs having corresponding edge portions and successively connected by corresponding center portions of the strip. In one embodiment, the sheared strip is fed between first and second overlapping sets of power driven pinch rollers which progressively grip the edge and center portions, respectively, and the second set of pinch wheels is longitudinally offset and driven at a higher peripheral speed to produce precisely uniform expansion of the strip by deforming the U-shaped tabs into V-shaped tabs. A hot melt adhesively impregnated flexible filament is progressively attached to the expanded center portions of the strip while the strip is heated to form a continuous center connection. In another embodiment, the strip of opposing U-shaped tabs is expanded into opposing V-shaped tabs by coining or thinning a connecting center portion of the strip. The expanded strip is progressively formed into a channel which is fed into an extrusion head for reinforcing a rubber-like weatherstrip.
REFERENCES:
patent: 1267978 (1918-05-01), Collinson
patent: 2290842 (1942-07-01), Bush
patent: 3256577 (1966-06-01), Bright
patent: 4099765 (1978-07-01), Bright
patent: 4188424 (1980-02-01), Ohno et al.
patent: 4304816 (1981-12-01), Bright et al.
patent: 4305187 (1981-12-01), Iwamura et al.
patent: 4348443 (1982-09-01), Hein
patent: 4430374 (1984-02-01), Ezaki
patent: 4610907 (1986-09-01), Elvira
patent: 4749203 (1988-06-01), Bright
patent: 4921118 (1990-05-01), Gass
Davis Robert W.
Harney Thomas H.
The Gem City Engineering Co.
Zimmerman John
LandOfFree
Expanded metal strip for reinforcing a resilient product does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Expanded metal strip for reinforcing a resilient product, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expanded metal strip for reinforcing a resilient product will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2097735