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. 02, 1985
Filed:
May. 04, 1983
Douglas J Toth, Long Beach, CA (US);
Under Sea Industries, Inc., Rancho Dominguez, CA (US);
Abstract
A diaphragm for a scuba diving regulator incorporates a contact member in the form of an axially thin spool cast or fabricated of low friction material. The contact member is installed at a central aperture of the diaphragm so that the end plates or flanges of the spool closely encompass the diaphragm on opposite sides. One of the flanges is located on the outside of the diaphragm, and the other is located on the inside, to be engaged by the actuating lever of the demand valve. No special sealing means need be provided about the spool, since the pressure difference between the ambient water and the air in the breathing chamber is always small, whatever be the depth of the diver in the water, but effective to maintain the seal.