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:
Sep. 08, 1981
Filed:
Oct. 01, 1979
Applicant:
Inventor:
Paul E Allen, Newtown, CT (US);
Assignee:
Logic Devices, Inc., Bethel, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28D / ; B29F / ;
U.S. Cl.
CPC ...
165 70 ; 165D / ; 16510432 ; 55193 ; 55189 ; 249 79 ; 264219 ;
Abstract
A negative pressure cooling system for cooling passageways in plastic molds includes a closed reservoir that is maintained under a high vacuum by a vacuum fluid pump with the outlet of the cooling passageway being connected to the reservoir inlet and with the reservoir outlet being connected to the cooling passageway inlet through a pressure pump and a fluid pressure regulator.
Allen, Paul. (1981). Plastic mold negative pressure cooling system (U.S. Patent No. 4287941). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4287941
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile