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:
Aug. 16, 1983
Filed:
Oct. 16, 1981
Norman F Costello, Racine, WI (US);
Modine Manufacturing Company, Racine, WI (US);
Abstract
An oil temperature regulator having a by-pass first passage means through the regulator for the oil, a heat exchange second passage means separate from the first, a cooler for transfer of heat between the cooler and the heat exchange second passage means, a first valve movable to open and close a first port between said oil entrance and heat exchange second passage, a second valve downstream from the first valve movable to open and close a second port between the by-pass and heat exchange passages for directing oil away from said by-pass passage through said heat exchange second passage at a selected temperature, a third valve downstream from the second valve movable to open and close a third port between the by-pass first passage means and the oil exit and temperature responsive means at the entrance operable by the entering oil at a first temperature to open the normally closed first valve at this temperature and temperature responsive means operable by the exiting oil at a second temperature higher than said first temperature to open the normally closed second valve and close the normally open third valve at this second temperature.