Reinforcing hole punch device

Details Reinforcing hole punch device Reinforcing hole punch device

1976-08-03

1977-06-07

Drummond, Douglas J.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With cutting, punching, piercing, severing, or tearing

B32B 3100

Patent

active

040281701

ABSTRACT:
A reinforcing hole punch device for punching a hole in a sheet of material and applying an annularly shaped reinforcing element to the sheet includes a base having a channel therethrough and a large opening therein, wherein the channel communicates with the opening. A strip of paper has reinforcing elements disposed thereon. A sheet of material to be punched is insertable into the opening. The top of the base has a plurality of apertures therein, wherein each aperture receives a punch element therein. A mechanism is provided for advancing the tape each time the punch element is depressed.

REFERENCES:
patent: 1068950 (1913-07-01), Timm
patent: 1147715 (1915-07-01), Gall
patent: 2591935 (1952-04-01), Heigl
patent: 3441462 (1969-04-01), Bogan et al.
patent: 3558254 (1971-01-01), Cahill

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