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:
Apr. 04, 1978
Filed:
Mar. 18, 1977
Clifford C Duff, Warren, MI (US);
Robert J Salloum, Sterling Heights, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
Scrap polyurethane foam particles are intermittently fed into a high pressure hydrolysis reactor for recycling by means of a novel feed apparatus mounted on the reactor. The particles are air carried through a controlled inlet valve into the housing of the feed apparatus. The housing is lined with an open ended cylindrical perforated sleeve that retains a charge of particles but permits the air to be exhausted from the housing. An outlet valve is opened and a piston, reciprocative in the sleeve, pushes the particles through the housing outlet into the high pressure reactor. The piston is retracted, the outlet valve closed, and the cycle repeated.