Patents by Inventor Randall Scott Collison
Randall Scott Collison has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10221961Abstract: Anti-rotation assemblies for use with fluid valves are disclosed. An example apparatus includes a retainer collar coupled at an end of a plug, the plug including a plug collar around which the retainer collar is disposed, the plug and the retainer collar being substantially flush at an interface between the plug and the retainer collar, a fastener extending transversely through the retainer collar and the plug collar to couple the retainer collar at the end of the plug, when the retainer collar and the plug are disposed within a valve body, a stem extends through the retainer collar and the plug to enable the plug to be moved within the valve body; and an anti-rotation collar to receive the retainer collar, the anti-rotation collar coupled at an end of a cage, the anti-rotation collar and the retainer collar having corresponding non-circular cross-sections to inhibit rotation of the retainer collar and the plug when the plug is moved within the valve body.Type: GrantFiled: March 24, 2017Date of Patent: March 5, 2019Assignee: Fisher Controls International LLCInventors: Randall Scott Collison, Chad Michael Engle, Christine Rae Hodny
-
Publication number: 20170198832Abstract: Anti-rotation assemblies for use with fluid valves are disclosed. An example apparatus includes a retainer collar coupled at an end of a plug, the plug including a plug collar around which the retainer collar is disposed, the plug and the retainer collar being substantially flush at an interface between the plug and the retainer collar, a fastener extending transversely through the retainer collar and the plug collar to couple the retainer collar at the end of the plug, when the retainer collar and the plug are disposed within a valve body, a stem extends through the retainer collar and the plug to enable the plug to be moved within the valve body; and an anti-rotation collar to receive the retainer collar, the anti-rotation collar coupled at an end of a cage, the anti-rotation collar and the retainer collar having corresponding non-circular cross-sections to inhibit rotation of the retainer collar and the plug when the plug is moved within the valve body.Type: ApplicationFiled: March 24, 2017Publication date: July 13, 2017Inventors: Randall Scott Collison, Chad Michael Engle, Christine Rae Hodny
-
Patent number: 9664290Abstract: An example apparatus includes a valve body defining a fluid flow passageway between an inlet and an outlet, a cage disposed in the fluid flow passageway, a plug disposed in the cage, a retainer collar coupled at an end of the plug, where an exterior surface of the retainer collar includes a first engagement surface having a first non-circular cross-section, and an anti-rotation collar coupled at an end of the cage, where the anti-rotation collar has a second engagement surface defining an aperture to receive the retainer collar, where the aperture has a second non-circular cross-section, where the engagement surfaces interact to inhibit rotation of the retainer collar and the plug.Type: GrantFiled: September 9, 2015Date of Patent: May 30, 2017Assignee: Fisher Controls International LLCInventors: Randall Scott Collison, Chad Michael Engle, Christine Rae Hodny
-
Publication number: 20150377363Abstract: An example apparatus includes a valve body defining a fluid flow passageway between an inlet and an outlet, a cage disposed in the fluid flow passageway, a plug disposed in the cage, a retainer collar coupled at an end of the plug, where an exterior surface of the retainer collar includes a first engagement surface having a first non-circular cross-section, and an anti-rotation collar coupled at an end of the cage, where the anti-rotation collar has a second engagement surface defining an aperture to receive the retainer collar, where the aperture has a second non-circular cross-section, where the engagement surfaces interact to inhibit rotation of the retainer collar and the plug.Type: ApplicationFiled: September 9, 2015Publication date: December 31, 2015Inventors: Randall Scott Collison, Chad Michael Engle, Christine Rae Hodny
-
Patent number: 9206909Abstract: Anti-rotational assemblies for use with fluid valves are disclosed herein. An example anti-rotation assembly includes an anti-rotation retainer to couple to a flow control member of a valve and an anti-rotator to engage the anti-rotation retainer. The anti-rotator prevents rotation of the anti-rotation retainer relative to a longitudinal axis of the anti-rotation retainer when the anti-rotation retainer is disposed in the valve.Type: GrantFiled: January 31, 2012Date of Patent: December 8, 2015Assignee: FISHER CONTROLS INTERNATIONAL LLCInventors: Randall Scott Collison, Chad Michael Engle, Christine Rae Hodny
-
Patent number: 9182053Abstract: Methods and apparatus to load a valve packing are described. An example method disclosed herein includes adjusting a packing flange nut to a position corresponding at least approximately to a free condition of a biasing assembly, coupling a first gauge member to a first flange, adjusting a first gap between a first surface of the first gauge member and a reference surface opposite the first flange to a first predetermined distance, and tightening the packing flange nut so that the first surface of the first gauge member substantially aligns with or engages the reference surface and causes a load assembly to provide a first predetermined packing stress to the valve packing when the first gauge member substantially aligns with or engages the reference surface.Type: GrantFiled: November 18, 2013Date of Patent: November 10, 2015Assignee: FISHER CONTROLS INTERNATIONAL LLCInventors: Wilbur Dean Hutchens, Randall Scott Collison, Loren Lee Bovee, David Charles Stanze
-
Publication number: 20140077111Abstract: Methods and apparatus to load a valve packing are described. An example method disclosed herein includes adjusting a packing flange nut to a position corresponding at least approximately to a free condition of a biasing assembly, coupling a first gauge member to a first flange, adjusting a first gap between a first surface of the first gauge member and a reference surface opposite the first flange to a first predetermined distance, and tightening the packing flange nut so that the first surface of the first gauge member substantially aligns with or engages the reference surface and causes a load assembly to provide a first predetermined packing stress to the valve packing when the first gauge member substantially aligns with or engages the reference surface.Type: ApplicationFiled: November 18, 2013Publication date: March 20, 2014Applicant: Fisher Controls International LLCInventors: Wilbur Dean Hutchens, Randall Scott Collison, Loren Lee Bovee, David Charles Stanze
-
Patent number: 8613423Abstract: Methods and apparatus to load a valve packing are described. An example apparatus to load a valve packing includes a load assembly having a biasing element disposed between a valve packing flange and a stop flange to provide a load to a seal assembly. The packing flange is adjustable relative to the stop flange to adjust the load to be applied to the seal. A first guide member coupled to the packing flange or the stop flange provides a first predetermined distance between the packing flange and the stop flange. The first guide member provides an indication of a first predetermined load to be provided by the load assembly when the packing flange and the stop flange are spaced at the first predetermined distance provided by the first guide member.Type: GrantFiled: August 4, 2009Date of Patent: December 24, 2013Assignee: Fisher Controls International LLCInventors: Wilbur Dean Hutchens, Randall Scott Collison, Loren Lee Bovee, David Charles Stanze
-
Publication number: 20130193356Abstract: Anti-rotational assemblies for use with fluid valves are disclosed herein. An example anti-rotation assembly includes an anti-rotation retainer to couple to a flow control member of a valve and an anti-rotator to engage the anti-rotation retainer. The anti-rotator prevents rotation of the anti-rotation retainer relative to a longitudinal axis of the anti-rotation retainer when the anti-rotation retainer is disposed in the valve.Type: ApplicationFiled: January 31, 2012Publication date: August 1, 2013Inventors: Randall Scott Collison, Chad Michael Engle, Christine Rae Hodny
-
Publication number: 20110006242Abstract: Methods and apparatus to load a valve packing are described. An example apparatus to load a valve packing includes a load assembly having a biasing element disposed between a valve packing flange and a stop flange to provide a load to a seal assembly. The packing flange is adjustable relative to the stop flange to adjust the load to be applied to the seal. A first guide member coupled to the packing flange or the stop flange provides a first predetermined distance between the packing flange and the stop flange. The first guide member provides an indication of a first predetermined load to be provided by the load assembly when the packing flange and the stop flange are spaced at the first predetermined distance provided by the first guide member.Type: ApplicationFiled: August 4, 2009Publication date: January 13, 2011Inventors: Wilbur Dean Hutchens, Randall Scott Collison, Loren Lee Bovee, David Charles Stanze