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:
Oct. 27, 1981
Filed:
Jun. 27, 1979
Leonard D Kurtz, Woodmere, NY (US);
Robert E Bidwell, Melville, NY (US);
BioResearch Inc., Farmingdale, NY (US);
Abstract
An underwater drainage apparatus is provided which is convertible from a two bottle system including a collection chamber and underwater seal chamber to a three bottle system including a suction control chamber. A rubber diaphragm is provided in the container for the collection chamber and underwater seal and a needle having a large bore is provided in the suction control chamber. Trackways on the suction control chamber and collection chamber interfit so that the suction control chamber can be slid into position wherein the needle penetrates the diaphragm to place the suction control chamber in fluid communication with the underwater seal chamber and collection chamber.