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. 26, 2000
Filed:
Nov. 09, 1998
Ahmad Maher Moubayed, Mission Viejo, CA (US);
Oscar E Hyman, Poulsbo, WA (US);
Robert L Jones, Anaheim, CA (US);
David Norman White, San Juan Capistrano, CA (US);
Other;
Abstract
A curvilinear peristaltic pump for facilitating the pumping of a liquid through a length of resilient tubing. The pump comprises a housing having a platen member attached thereto and a rotatable cam disposed therewithin. Also disposed within the housing is a drive unit of the pump which is mechanically coupled to the cam such that the activation of the drive unit results in the concurrent rotation of the cam in a first direction and the deactivation of the drive unit maintains the cam in a set position. Movably attached to the housing are a plurality of pump fingers of the pump, each of which has a first end which is cooperatively engaged to the cam and a second end which is disposed in spaced relation to the platen member. The cam is configured to sequentially move the pump fingers radially outwardly toward and inwardly away from the platen member when rotated in the first direction by the drive unit. A portion of the tubing may be extended between the platen member and the second ends of the pump fingers such that the sequential movement of the pump fingers toward and away from the platen member results in liquid within the tubing being pumped in the first direction of rotation of the cam. The pump is used in conjunction with a disposable tubing assembly which is provided with a shut-off valve to selectively obstruct the flow of liquid through the tubing assembly.