1
Cook Ralph J, Moline Clifford C, Schumann Joseph M: Means to inject a plastic into a cavity to produce a replica thereof. Products Research & Chemical Corporation, December 26, 1972: US3707146 (60 worldwide citation)

The particular embodiment of the invention disclosed herein is specifically designed to produce a soft resilient plastic impression of the interior configuration of a body cavity, the invention having special utility for the purpose of medical diagnosis for exploring the lower portion of the large i ...


2
Cook Ralph J: In-line sealant dispenser. Products Research and Chemical Corporation, September 7, 1971: US3603487 (10 worldwide citation)

An in-line sealant dispenser has a socket member receiving the rear end of a cartridge assembly containing sealant to be selectively dispensed therefrom by air pressure, and a rearwardly extending manually rotatable control handle member threaded onto a coaxial boss on the socket member, axially in ...