Replaceable ink pad

Details Replaceable ink pad Replaceable ink pad

1990-10-01

1991-04-09

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

4283171, 4283177, 4283211, 4283213, B32B 326

Patent

active

050064045

ABSTRACT:
This invention relates to a replaceable ink pad that is capable of supplying ink in excess of 5,000 printing cycles. The ink pad is made of a first layer of polyethylene foam that is attached to a bottom layer of felted melamine foam by a porous polyamide adhesive. The first layer has a pore size of 10-20 microns and the bottom layer has a pore size of 140-180 microns. A tray can be provided to securely hold the pad.

REFERENCES:
patent: 4306498 (1981-12-01), Fujimura
patent: 4336767 (1982-06-01), Wada
patent: 4358505 (1982-11-01), Narumiya et al.

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