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:
Jun. 27, 2023
Filed:
Mar. 18, 2020
Applicant:
Northern Tool & Equipment Company, Inc., Burnsville, MN (US);
Inventors:
Matthew R. Pilcher, Owatonna, MN (US);
Timothy Rancourt, Lakeville, MN (US);
Assignee:
NORTHERN TOOL & EQUIPMENT COMPANY, INC., Burnsville, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 43/00 (2006.01); F04B 43/04 (2006.01); F04B 49/02 (2006.01); F04B 49/10 (2006.01); F04B 17/03 (2006.01);
U.S. Cl.
CPC ...
F04B 43/009 (2013.01); F04B 43/04 (2013.01); F04B 49/02 (2013.01); F04B 17/03 (2013.01); F04B 43/0045 (2013.01); F04B 49/10 (2013.01); F04B 2201/0208 (2013.01); F04B 2201/0803 (2013.01); F04B 2207/701 (2013.01); F04B 2207/702 (2013.01); F04B 2207/703 (2013.01);
Abstract
An electric diaphragm pump having a pump head assembly in a first housing, a motor assembly in a second housing, a fluid sensor, and a leak alert system and/or pump shut-off system. The fluid sensor detects a presence of fluid which has leaked outside of a pump chamber and is located within a cavity of the diaphragm drive chamber. The leak alert system indicates that fluid has been detected by the fluid sensor and the shut-off control system stops operation of the pump based on fluid being detected by the fluid sensor.