The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 1993
Filed:
Sep. 26, 1991
Charles R Sperry, Springfield, VT (US);
Henry Ruddy, Sandy Hook, CT (US);
Laurence B Sperry, Brookline, MA (US);
Sealed Air Corporation, Saddle Brook, NJ (US);
Abstract
A cleaning system is disclosed for pumping compressed air and cleaning solvent to the injection cartridge of a foam-in-place packaging system. The cleaning system comprises a solvent tank for containing a stock supply of solvent; a source of compressed air; and an air-activated submersible solvent pump in air flow communication with the compressed air source. The system also includes an injection cartridge of a foam-in-place packaging system in liquid communication with the solvent pump; and a regulator in air flow communication with the compressed air source, the pump, and the injection cartridge. The regulator distributes compressed air to operate the pump and to travel with solvent to the injection cartridge to provide a cleaning mixture of solvent and air to the cartridge.