MAURICE W ROY
Broker in Natick, MA
License number
Massachusetts 9024661
Issued Date
Jan 21, 1998
Expiration Date
Sep 11, 1999
Type
Salesperson
Address
Address
Natick, MA 01760
Professional information
Inflatable Life Vest
US Patent:
5494469, Feb 27, 1996
Filed:
Sep 30, 1994
Appl. No.:
8/316709
Inventors:
Cleveland A. Heath - Medfield MA
Maurice W. Roy - Natick MA
Maurice W. Roy - Natick MA
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
B63C 908
US Classification:
441118
Abstract:
An inflatable life vest comprises two sheets of polymeric material. The es of these sheets are sealed to form an inner cavity with a plurality of discrete, inflatable chambers disposed in a U-shaped pattern to define collar and chest portions of the life vest. A manifold connects to an inflation source and has a plurality of openings. A check valve connects each manifold opening with one of the chambers to permit inflation medium flow into the chamber and to block inflation medium flow outwardly from a chamber into the manifold. This construction isolates the chambers from one another so the rupture of one chamber does not affect the ability of the other chambers to be buoyant.