Patents by Inventor William Rinehart Holland
William Rinehart Holland 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).
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Patent number: 10087700Abstract: An improved multi-cavity blowout preventer is disclosed. The improved multi-cavity blowout preventer includes a first cavity and a first actuator assembly coupled to the first cavity. A second cavity is disposed adjacent to the first cavity and a second actuator assembly is coupled to the second cavity. The second cavity is disposed at an angular offset from the first cavity.Type: GrantFiled: June 10, 2015Date of Patent: October 2, 2018Assignee: Axon Pressure Products, Inc.Inventor: William Rinehart Holland, Jr.
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Patent number: 9932795Abstract: Present embodiments of the disclosure are directed to a seal assembly for generating a seal between two opposing shear blades of a ram unit after shearing a tubular. The seal assembly may include at least a wiper, a sealing element, and an energizer. The wiper may clean a surface of a shear blade as the blade moves relative to the seal assembly. The sealing element may include an elastomeric material that can be deformed into engagement with the shear blade to generate the seal. The energizer may be a hard component that energizes the sealing element against the cleaned surface of the shear blade as the blade moves further relative to the seal assembly. The wiper may clean the sealing surface of the blade by removing debris from the surface prior to the energizer activating the seal.Type: GrantFiled: September 4, 2015Date of Patent: April 3, 2018Assignee: Axon Pressure Products, Inc.Inventors: William Rinehart Holland, Jr., Jess W. Shows, Bradford S. Franks
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Patent number: 9879498Abstract: Present embodiments of the disclosure are directed to a blowout preventer having a ram unit designed to shear wellbore tubulars with a range of diameters. The ram unit may include a first shear block having a first blade profile, and a second shear block having a second blade profile. The blade profiles may each feature an angled portion for contacting the wellbore tubular. The angled portion of the first blade profile may be a different size (e.g., width dimension) than the angled portion of the second blade profile. This may enable the larger angled portion to support a smaller tubular while contact points on the smaller angled portion apply a force for shearing the tubular. With larger tubulars, an initial edge of the blade profile with the smaller angled portion may support the tubular while contact points on the larger angled portion apply a force for shearing the tubular.Type: GrantFiled: April 21, 2015Date of Patent: January 30, 2018Assignee: Axon Pressure Products, Inc.Inventor: William Rinehart Holland, Jr.
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Patent number: 9732577Abstract: The disclosed embodiments are directed to a blowout preventer with a hinged bonnet assembly having components designed to improve the maintenance and serviceability of the blowout preventer. The blowout preventer includes a body with intersecting passageways extending therethrough. The blowout preventer also includes a bonnet including a ram unit capable of seating in a ram location of the body and a bonnet door removably coupled to a first side of the body. The blowout preventer further includes a pin or hinge adapter disposed along the body and defining a hinge axis, and a hinge rotatably coupled to the pin or hinge adapter. The hinge is coupled to the bonnet door to rotate the bonnet about the hinge axis, and the hinge and the bonnet door are selectively separable. The separable hinge allows an operator to access, remove, and replace the hinge if the hinge becomes worn or impacted during operation.Type: GrantFiled: September 8, 2015Date of Patent: August 15, 2017Assignee: Axon Pressure Products, Inc.Inventors: William Rinehart Holland, Jr., Jess W. Shows, Bradford S. Franks
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Publication number: 20170067308Abstract: Present embodiments of the disclosure are directed to a seal assembly for generating a seal between two opposing shear blades of a ram unit after shearing a tubular. The seal assembly may include at least a wiper, a sealing element, and an energizer. The wiper may clean a surface of a shear blade as the blade moves relative to the seal assembly. The sealing element may include an elastomeric material that can be deformed into engagement with the shear blade to generate the seal. The energizer may be a hard component that energizes the sealing element against the cleaned surface of the shear blade as the blade moves further relative to the seal assembly. The wiper may clean the sealing surface of the blade by removing debris from the surface prior to the energizer activating the seal, thus enabling a more secure seal to be established on the blade surface.Type: ApplicationFiled: September 4, 2015Publication date: March 9, 2017Inventors: William Rinehart Holland, Jr., Jess W. Shows, Bradford S. Franks
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Publication number: 20170067309Abstract: The disclosed embodiments are directed to a blowout preventer with a hinged bonnet assembly having components designed to improve the maintenance and serviceability of the blowout preventer. The blowout preventer includes a body with intersecting passageways extending therethrough. The blowout preventer also includes a bonnet including a ram unit capable of seating in a ram location of the body and a bonnet door removably coupled to a first side of the body. The blowout preventer further includes a pin or hinge adapter disposed along the body and defining a hinge axis, and a hinge rotatably coupled to the pin or hinge adapter. The hinge is coupled to the bonnet door to rotate the bonnet about the hinge axis, and the hinge and the bonnet door are selectively separable. The separable hinge allows an operator to access, remove, and replace the hinge if the hinge becomes worn or impacted during operation.Type: ApplicationFiled: September 8, 2015Publication date: March 9, 2017Inventors: William Rinehart Holland, JR., Jess W. Shows, Bradford S. Franks
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Publication number: 20160312564Abstract: Present embodiments of the disclosure are directed to a blowout preventer having a ram unit designed to shear wellbore tubulars with a range of diameters. The ram unit may include a first shear block having a first blade profile, and a second shear block having a second blade profile. The blade profiles may each feature an angled portion for contacting the wellbore tubular. The angled portion of the first blade profile may be a different size (e.g., width dimension) than the angled portion of the second blade profile. This may enable the larger angled portion to support a smaller tubular while contact points on the smaller angled portion apply a force for shearing the tubular. With larger tubulars, an initial edge of the blade profile with the smaller angled portion may support the tubular while contact points on the larger angled portion apply a force for shearing the tubular.Type: ApplicationFiled: April 21, 2015Publication date: October 27, 2016Inventor: William Rinehart Holland, Jr.
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Publication number: 20150361755Abstract: An improved multi-cavity blowout preventer is disclosed. The improved multi-cavity blowout preventer includes a first cavity and a first actuator assembly coupled to the first cavity. A second cavity is disposed adjacent to the first cavity and a second actuator assembly is coupled to the second cavity. The second cavity is disposed at an angular offset from the first cavity.Type: ApplicationFiled: June 10, 2015Publication date: December 17, 2015Inventor: William Rinehart Holland, JR.
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Patent number: 6845959Abstract: A bonnet lock mechanism for a blowout preventer including an angled surface disposed in the blowout preventer, a latching dog having a tapered surface disposed in the bonnet, and a lock actuator operatively coupled to the latching dog. The the lock actuator is adapted to move the latching dog such that the latching dog is in locking engagement with the angled surface of the blowout preventer.Type: GrantFiled: April 28, 2003Date of Patent: January 25, 2005Assignee: Hydril Company, L.P.Inventors: Michael Wayne Berckenhoff, Edward Ryan Hemphill, William Rinehart Holland
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Publication number: 20040021102Abstract: A bonnet lock mechanism for a blowout preventer including an angled surface disposed in the blowout preventer, a latching dog having a tapered surface disposed in the bonnet, and a lock actuator operatively coupled to the latching dog. The the lock actuator is adapted to move the latching dog such that the latching dog is in locking engagement with the angled surface of the blowout preventer.Type: ApplicationFiled: April 28, 2003Publication date: February 5, 2004Inventors: Michael Wayne Berckenhoff, Edward Ryan Hemphill, William Rinehart Holland
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Patent number: D782542Type: GrantFiled: September 8, 2015Date of Patent: March 28, 2017Assignee: Axon Pressure Products, Inc.Inventors: William Rinehart Holland, Jr., Jess W. Shows, Bradford S. Franks