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:
Apr. 13, 1993
Filed:
Jul. 01, 1991
Soo Y Choi, Suweon, KR;
SamSung Electronics Co., Ltd., Suwon, KR;
Abstract
A motor controlling apparatus for a vacuum cleaner comprising a cylinder disposed on the base of the vacuum cleaner, a spring base mounted at lower portion of the cylinder and provided with an aperture communicating with the hole of the base, a spring mounted on the spring base, a piston biased by the spring, a cylinder head seal-tightly contacting with the piston and provided with a hole communicating with the atmosphere, and a limit switch contacting with the piston by means of an actuating rod penetrating the hole of the cylinder head in order to automatically turn off circuit of drive motor. The present invention can provide a motor controlling apparatus which can automatically open the circuit of the drive motor by means of the limit switch capable of being opened by the actuating rod as the piston moves downward resulting from rising of degree of vacuum inside the collection tank of the vacuum cleaner such as due to a clogging of the suction port and the filter pocket of the tank.