An improved electrical connector having an electrical connector housing and at least one face seal, wherein the improved electrical connector is a single molded connector housing. The electrical connector housing includes a plurality of passageways extending from a first end to a second end. A face seal includes a plurality of openings corresponding to the plurality of passageways within the electrical connector housing, each passageway having a semi-o-ring on at least one side of the face seal. In a preferred embodiment, the improved electrical connector is made form an o-ring type material such as, but not limited to, neoprene or Buna-N rubber. The improved electrical connector does not need additional seals to create a waterproof seal, and therefore does not suffer from increased tolerance stack-up. Furthermore, when constructed from an o-ring type material, the improved electrical connector does not cold flow around a receptacle's pins.
Robert S. Janus - Quaker Hill CT Kurt J. Janecek - Waterford CT Robert A. Roush - Norwich CT
Assignee:
The United Sates of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H04R 1700
US Classification:
367163
Abstract:
An acoustic transducer comprising a housing, and first and second stacks of ransduction plates disposed within the housing for engaging opposed wall portions of the housing, the first and second stacks being adapted to be held in compression between the housing opposed wall portions. A threaded stud extends from the first stack to the second stack, and a nut is threadedly engaged with the stud and adjacent one of the stacks. Movement of the nut on the stud operates to move the stacks toward the housing walls, respectively, to compress the stacks, and operates to relax compressive force on the stacks to enable withdrawal of one of the stacks and replacement thereof.
Robert A. Roush - Norwich CT David L. Bartlett - Springville IN William T. Young - Cheseapeake VA Austin H. Wolfe - New London CT
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H02G 318
US Classification:
174 65G
Abstract:
The invention is directed to a grommet including a cylindrical body fabried from rubber or synthetic rubber material. The body has a centrally located aperture extending therethrough and at least one radially located aperture with a slit for easily receiving a cable or the like. The grommet further includes a rigid insert secured to the body in the centrally located aperture. The insert has female threads formed therein for releasably securing a tool thereto to remove the grommet from the ballast tank without destroying the body of the grommet. The insert has a tubular member and an outwardly projecting circumferential flange formed on the tubular member. The body is formed on the tubular member wherein the flange secures the insert axially with respect to the body. Preferably, the body is fabricated from neoprene and is vulcanized to its final form.
Robert A. Roush - Norwich CT Raymond P. Pineault - Norwich CT
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H01R 1358
US Classification:
439472
Abstract:
A mechanical strain relief for a cable is firmly attached directly to the using of the connector to which the cable termination is plugged into. The strain relief has a split clamp aligned perpendicularly to the cable and extends from the housing sufficiently such that the clamp does not interfere with the use of a watertight rubber boot bonded to the housing to make the connector watertight. The clamp is opened and the cable is inserted into the connector. The clamp is then closed and tightened against the cable, such that any forces on the cable are transmitted through the strain relief to the housing. A guard extends from the strain relief and is shaped to loop around the cable to provide protection for the connector from foreign objects which would otherwise strike the termination or connector.
Robert A. Roush - Norwich CT Robert J. DeAngelis - Niantic CT
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
B29C 4500 B32B 306
US Classification:
428 99
Abstract:
A method for making polyurethane acoustic windows. A molding material is lied to a reservoir connected to the bottom of the mold to fill the mold under the influence of a vacuum applied at the top of the mold. After initialling filling the mold, a second reservoir connects to the vacuum port and additional material is added to the first reservoir to partially fill the second reservoir. Thereafter the mold with the reservoirs attached is located in a pressure oven for curing. After curing the mold an acoustic window is removed from the mold for post molding operations.