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:
Jul. 29, 1997
Filed:
Apr. 07, 1995
Applicant:
Inventor:
Heinz Pluss, Schonbuhl-Urtenen, CH;
Assignee:
Digmesa AG, Schonbuhl-Urtenen, US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417 20 ; 417 43 ; 73714 ; 7386177 ; 2221291 ;
Abstract
In order to create a safety device (1) by means of which reliable protection of the pump can be achieved as simply as possible, it is proposed that safety device (1) have a housing (4) provided with an inlet (5) and an outlet, inside which housing a first detection device with a transmitter element in the form of an impeller (7) provided with measuring blades (9) and a central part (10) are provided to determine the liquid throughput and a second detection device (24) in the form of a probe for detecting the liquid, both of which are connected with a control device for the pump.