John Stuart Watts
Acupuncture in Austin, TX

6578880, Jun 17, 2003

Nov 19, 2001

09/994597

John D. Watts - Austin TX

Ramos, Beverly Watts - Austin TX

F16L 1500

285334, 285390

Several embodiments of a wedgethread pipe connection are disclosed that have improved makeup, sealing, and non-loosening characteristics. In one embodiment, an open wedgethread is disclosed that has an included angle measured in the gap between the stab flank and the load flank to be not less than zero, so as to prevent premature wedging between mating flanks before the position of full makeup is reached, as does occur between trapped wedgethreads wherein the included angle is less than zero. The invention may be used for pipe threads large or small, as a flush joint, with collars, screwed into plates or it may even be used to reversibly connect such as solid posts to base members where a wide makeup torque range is desired. This Open wedgethread, as opposed to trapped wedgethreads, provides a threaded pipe connection that: is more cost-effective; can seal high pressure gas; can provide selectively a connection strength as high as the pipe strength; assures easy makeup to the desired position of full makeup within a wide torque range; may have a torque strength as high as the pipe torque strength; is easier to manufacture; is easier to gage; and is less subject to handling damage.

2002011, Aug 29, 2002

Mar 6, 2002

10/092173

John Watts - Austin TX, US

BEVERLY WATTS RAMOS - AUSTIN TX

F16L025/00

285/333000, 285/334000, 285/390000, 285/355000

Several embodiments of a wedgethread pipe connection are disclosed that have improved makeup, sealing and non-loosening characteristics. In one embodiment, an open wedgethread is disclosed that has an included angle measured in the gap between the stab flank and the load flank to be not less than zero, so as to prevent premature wedging between mating flanks before the position of full makeup is reached, as does occur between trapped wedgethreads wherein the included angle is less than zero. The invention may be used for pipe threads large or small, as a flush joint, with collars, screwed into plates or it may even be used to reversibly connect such as solid posts to base members where a wide makeup torque range is desired. This Open wedgethread, as opposed to trapped wedgethreads, provides a threaded pipe connection that: is more cost-effective; can seal high pressure gas; can provide selectively a connection strength as high as the pipe strength; assures easy makeup to the desired position of full makeup within a wide torque range; may have a torque strength as high as the pipe torque strength; is easier to manufacture; is easier to gage; and is less subject to handling damage. One embodiment defines the ratio of, the thread width change per turn to the radius change per turn required to maintain a crest seal and therefore tightness, when the connection is subjected to transient service loads such as vibrations, shock and temperature fluxuations.

8181998, May 22, 2012

Jan 17, 2007

12/087762

John Watts - Austin TX, US

F16L 25/00

285334, 285333

Conventional box and pin threads are machined with equal thread pitches and radial interference so when they are assembled, the pin elongates and the box contracts axially, causing a mismatch in the thread pitch which in turn, reduces sealing and best load transfer capacities between mating threads. This invention teaches how to improve both sealing and load transfer capacities.

8246086, Aug 21, 2012

Aug 23, 2009

12/545832

John D. Watts - Austin TX, US

F16L 15/00

285334

A low cost threaded pipe connection for virtually any service is provided, that has selectively, unique sealing threads for general use that can be supplemented with a pin nose seal when specified by the user.