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:
Feb. 13, 1996
Filed:
Mar. 21, 1995
Joel D Feucht, Morton, IL (US);
Stephen G Shoup, Peoria, IL (US);
Victor E Swanson, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
The present invention provides a fluid circulating pump utilizing a plug assembly sealingly disposed within a weep hole located in a secondary compartment of a cavity. The plug assembly is disposed within the weep hole and has a tube portion extending a predetermined length into the secondary compartment. A connector holds the plug assembly within the second compartment and sealingly engages the plug assembly with the weep hole. The length of the tube portion is sufficient to contain the leaked fluid within the secondary compartment until it can be evaporated, substantially eliminating fluid leakage into the atmosphere. However, excessive fluid build-up may occur within the secondary compartment when the pump is damaged. The present invention allows the excessive fluid to leak out to the atmosphere through a bore in the plug assembly to signal that pump repair is needed.