Arthur William Wallace
Engineers at Progress Way, Denver, CO

5046669, Sep 10, 1991

Feb 27, 1990

7/485594

Arthur W. Wallace - Aurora CO
Jack R. Sorwick - Parker CO
Thomas Pearce - Littleton CO
Philip E. Clements - Littleton CO
David E. Wood - Englewood CO

National Syringe Disposal, Inc. - Englewood CO

B02C 1914

241 23

A syringe disposal apparatus has a portable collection unit (1) and a processing unit (2'). The collection unit (1) has an in-feed mechanism (11) to allow syringes to be introduced into the collection unit (1); and an interlock mechanism (12) suitable for removably securing the collection unit (1) to the processing unit (2') and emptying the syringes from the collection unit (1) into the processing unit (2'). The processing unit (2') contains an interlock mechanism (20) suitable to activating the collection unit interlock mechanism (11); a hammer mill (43) for initially breaking up the syringes (45) into discrete pieces (45'); a paddle wheel (44) to regulate the passage of the broken syringe pieces to a grinder (21) suitable for grinding the syringes into particles of metal and plastic; a crucible assembly (22) suitable for heating these particles above the melting point of plastic, and then cooling to produce a solid puck of plastic in which the metal particles are suspended and encapsulated; and a controlling means (50) to coordinate the efficient operation of the members of the processing unit (2').

5228271, Jul 20, 1993

May 28, 1992

7/889795

Arthur W. Wallace - Aurora CO

Medivators, Inc. - Cannon Falls MN

B65B 126

53434

An apparatus and method for evacuating gas from a container having collapsible walls. The apparatus is especially useful for removing air from flexible collapsible containers which comprise soft goods such as disposable hospital gowns, surgical paper and plastic wastes which must be transported and disposed of in a safe fashion.