1
Charles Sperry
Charles R Sperry, Harry F Riley: Cleaning assembly for a foam dispensing apparatus. Sealed Air Corporation, Lerner David Littenberg Krumholz & Mentlik, January 17, 1984: US04426023 (22 worldwide citation)

A cleaning assembly is provided for a foam dispensing apparatus which intermittently supplies a solvent to the discharge port of the dispensing apparatus for removal of accumulations of dispensed foam therefrom. The cleaning assembly is constructed from a body having a wall forming an opening extend ...


2
Charles Sperry
Charles R Sperry: System for dispensing polyurethane and the like. Instapak Corporation, Albert Siegel, August 24, 1976: US03976230 (22 worldwide citation)

A polyurethane foam dispensing system wherein electrical lines in the conduits thereof are used to controllably heat the foam precursor materials and to maintain such material at optimum temperature for foam formation. A thermistor at the dispensing end of such conduits senses the temperature of the ...


3
Charles Sperry
Charles R Sperry, Vincent A Piucci Jr, Todd A Hanna: Dispensing system, components of a dispensing system, and method of manufacturing, operating and servicing a dispensing system and components thereof. Carpenter Co, Smith Gambrell & Russell, December 7, 1999: US05996848 (21 worldwide citation)

A mixing chamber assembly which has a reciprocating rod received within a mixing chamber of a mixing chamber member. The reciprocating rod is in a non-interference position with the mixing chamber over its entire length within the mixing chamber. The non-interference fit provides for continuous solv ...


4
Charles Sperry
Charles R Sperry, Vincent A Piucci Jr, Todd A Hanna: Dispensing system, components of a dispensing system, and method of manufacturing, operating and servicing a dispensing system and components thereof. Carpenter Co, Smith Gambrell & Russell Beveridge DeGrandi Weilacher & Young, October 12, 1999: US05964378 (19 worldwide citation)

Mixing chamber assembly having a reciprocating rod within a mixing chamber of a mixing chamber member. The rod is in a non-interference position with the mixing chamber over its entire length within the mixing chamber. The non-interference fit provides continuous solvent flow about the exterior of t ...


5
Charles Sperry
Charles R Sperry, Paul J Bladyka: Apparatus, method and article for applying a melted adhesive. Charles R Sperry, St Onge Steward Johnston & Reens, February 14, 1989: US04804110 (14 worldwide citation)

A dispenser is described for extruding a hot melt adhesive obtained by melting a rod of adhesive in a normally closed pressurized melting chamber. The rod is supplied from a remotely located spool through a flexible conduit to an inlet of the dispenser. A seal is placed at the inlet and is cooled by ...


6
Charles Sperry
Vincent A Piucci Jr, Charles R Sperry, Walter C Sadakierski, Suzanne M Scott: Self-cleaning fluid dispenser. Sealed Air Corporation, Thomas C Lagaly, November 2, 2004: US06811059 (11 worldwide citation)

A fluid dispenser generally includes a housing and a valving rod disposed in and movable within the housing, the valving rod including a central bore, at least one inlet for receiving a cleaning fluid composed of a solvent and a gas, and one or more outlet ports in fluid communication with the bore, ...


7
Charles Sperry
Piucci Vincent A Jr, Sperry Charles R, Sadakierski Walter C, Scott Suzanne: Distributrice de liquide autonettoyante, Self-cleaning fluid dispenser. Sealed Air Corporation, Sealed Air Corporation, Smart & Biggar, December 8, 2009: CA2457428

A fluid dispenser generally includes a housing and a valuing roddisposed in and movable within the housing, the valuing rod including acentral bore, at least one inlet for receiving a cleaning fluid composed of asolvent and a gas, and one or more outlet ports in fluid communicationwith the bore, whe ...


8
Charles Sperry
Suzanne M Scott, Charles R Sperry, Dennis F McNamara: Material delivery system for use in solid imaging. 3D Systems, Summa Allan & Additon Pa, November 8, 2007: US20070257055-A1

A disposable liquid build material feed cartridge for use in a solid imaging apparatus and a method of dispensing build material for use in such an apparatus with a radiation transparent build material carrier. The disposable liquid build material feed cartridge recovers unused liquid material from ...


9
Charles Sperry
Melendy Peter S, Belanger Richard A, Sperry Charles R: Bulk system for hot melt adhesive application. Adhesive Technologies, Melendy Peter S, Belanger Richard A, Sperry Charles R, CLARK Conrad J, April 15, 1999: WO/1999/018027

A system for the supply of hot melt adhesive includes a heating tank (2) for holding, and heating a large amount of glue (3). The tank (2) is maintained at a temperature whereby the glue (3) is liquid but does not char. A heat grid (36) is located in the bottom of the tank (2) to heat the glue (3) t ...


10
Frederick E Shelton IV, Jerome R Morgan: Surgical stapling instruments structured for pump-assisted delivery of medical agents. Ethicon Endo Surgery, October 27, 2009: US07607557 (338 worldwide citation)

A medical agent dispensing system and surgical instruments that employ the medical agent dispensing system are provided. The dispensing system may be structured for use with a surgical severing/stapling instrument structured for severing and stapling tissue. The dispensing system may include at leas ...



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