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:
Dec. 18, 1979
Filed:
Jul. 08, 1977
Ingemar H Lundquist, Oakland, CA (US);
Valleylab, Boulder, CO (US);
Abstract
The intravenous feeding pump actuator of the present invention is driven by a small, very slow speed motor and a gear train, such as one rotating the output shaft at a speed of one revolution per minue (1 r.p.m.). The single motor drives a readily replaceable cam which is slipped into position on the drive shaft and needs no other means for attaching it thereto. Each of the cams normally supplied with the actuator is designed to give a predetermined number of rocking movements per minute to a cam follower which directly operates the associated intravenous pump, and simultaneously controls the limit of travel of the cam follower and thus the length of the stroke of the pump operator. It will be understood that each of the cams will provide for a different flow rate for the associated pump by controlling the number of strokes per minute and the length of each stroke and is readily changeable so that one can be quickly and easily removed and another placed in its stead when determined by operating conditions.