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. 17, 1999
Filed:
Sep. 27, 1995
Applicant:
Assignee:
Canplas Industries Ltd., Barrie, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02G / ; H02G / ;
U.S. Cl.
CPC ...
220242 ; 174 55 ; 174 67 ;
Abstract
A backing plate for an inlet valve for a central vacuum system is disclosed. The backing plate includes a tubular portion, which on one side is secured to vacuum conduits, and on the other side carries a vacuum opening having a rubber seal. The backing plate further includes a removable protective element or router disc to protect the rubber seal, such as for example during installation of dry wall over the backing plate.