Pipe joints or couplings – Essential catch
Patent
1997-09-02
1999-09-14
Green, Brian K.
Pipe joints or couplings
Essential catch
285321, 285355, F16L 3700, F16L 3900, F16L 1700
Patent
active
059510641
ABSTRACT:
An array of a plurality of module blocks with a common through-passageway with a combined fluid coupling and mechanical connector fitting received in the passageway between each pair of adjacent blocks. The fitting has a swivel body rotatably retained by a flexible retaining wire on a main body with two static-type O-rings. The main body has external straight threads on one end and a hex head protrusion adjacent the other end. A fluid conducting through-passageway in the main body has an enlarged cylindrical counterbore open at the hex end and with a circular internal groove therein. A tangentially intersecting wire-insertion radial opening leads from an external surface of the hex head into this groove. The swivel body has external straight male threads at one end, a cylindrical shank at the other end and a fluid conducting through-passageway communicating at one end with the main body passageway and having a hex socket in the other passageway end. An external groove on the shank registers with the counterbore internal groove when the shank is slidably inserted therein. The flexible retainer wire is then inserted via the hex head insertion opening into the registered coupling grooves to thereby permanently connect the bodies in axially fixed relationship while permitting relative rotation therebetween. The main body is threaded into the exposed end opening of a common passageway in first module block. Then a male hex rod tool is inserted through the like-passageway of a second block to be adjoined to the first block, and into the hex socket of the swivel body of the fitting to thereby rotatably thread it into the second block and thereby draw the two adjacent module blocks securely into side face-to-side face relationship. The fitting then functions as both a fluid coupling communicating the associated common passageway of the coupled blocks as well as a mechanical tie connector and alignment pin between these coupled blocks.
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Diebolt International, Inc.
Dolce Marcus
Green Brian K.
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