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:
Nov. 30, 1993
Filed:
Dec. 22, 1992
Applicant:
Inventors:
Russell J Fischer, North Plainfield, NJ (US);
Ronald L Tobia, Tinton Falls, NJ (US);
Michael D Leshner, Columbia, MD (US);
Assignee:
BOC Health Care, Inc., Liberty Corner, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05D / ;
U.S. Cl.
CPC ...
137103 ; 13762414 ; 251 65 ; 604120 ;
Abstract
An intermittent suction device for removing fluids from a patient where the duty cycle between the OFF and ON cycles is controlled by a magnetically susceptible diaphragm that switches back and forth between first and second positions, representing ON and OFF positions, by controlling the differential pressure across the diaphragm. The diaphragm is biased toward it first position by a permanent magnet that acts to attract the flexible diaphragm. The device has few moving parts and its duty cycle and overall cycle times are easily adjusted by the user.