Patents by Inventor Karim Mahraz
Karim Mahraz 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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Publication number: 20240026981Abstract: A spring return cartridge for a rotary actuated valve includes a torsion spring having a spring-loaded intermediate portion extending between first and second end portions and a spring carrier sleeved with the torsion spring. The spring carrier includes a first portion rotationally fixed with the first end portion of the torsion spring, and a second portion rotatably coupled with the second end portion of the torsion spring, such that the second end portion of the torsion spring is rotatable with respect to the spring carrier, and with respect to the first end portion of the torsion spring, between first and second rotational limit positions, with the intermediate portion of the torsion spring biasing the torsion spring second end portion to the first rotational limit position and maintaining a spring-loaded condition in the first rotational limit position.Type: ApplicationFiled: July 19, 2023Publication date: January 25, 2024Inventors: Matthew Dixon, Joseph Bashover, R. Scott Headings, Karim Mahraz, Ercan Balikci, Kristopher Scott Owens, Samuel Gunther Houser, Michael Bestic
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Publication number: 20230323978Abstract: A valve assembly includes a valve body defining an interior cavity extending to a bonnet portion, a valve stem including a valve element retained in the interior cavity of the valve body and an end portion extending beyond the bonnet portion, the valve stem being rotatable between first and second limit positions, and a spring return handle arrangement. The spring return handle arrangement includes a user graspable valve handle, a stem adapter, and a return spring. The stem adapter includes a first end portion secured to the valve stem and a second end portion secured to the valve handle. The return spring includes a first end portion secured to the valve body, an intermediate spring loaded portion, and a second end portion secured to the stem adapter to apply a torsional load to the stem adapter for returning the valve stem to the first rotational limit position.Type: ApplicationFiled: June 13, 2023Publication date: October 12, 2023Inventors: Matthew Dixon, Karim Mahraz
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Patent number: 11698144Abstract: A valve assembly includes a valve body defining an interior cavity extending to a bonnet portion, a valve stem including a valve element retained in the interior cavity of the valve body and an end portion extending beyond the bonnet portion, the valve stem being rotatable between a first limit position and a second limit position, and a spring return handle arrangement. The spring return handle arrangement includes a user graspable valve handle, a stem adapter, and a return spring. The stem adapter includes a first end portion secured to the valve stem and a second end portion secured to the valve handle. The return spring includes a first end portion secured to the valve body, an intermediate spring loaded portion, and a second end portion secured to the stem adapter to apply a torsional load to the stem adapter for returning the valve stem to the first rotational limit position.Type: GrantFiled: January 4, 2022Date of Patent: July 11, 2023Assignee: Swagelok CompanyInventors: Matthew Dixon, Karim Mahraz
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Publication number: 20220228672Abstract: A valve assembly includes a valve body defining an interior cavity extending to a bonnet portion, a valve stem including a valve element retained in the interior cavity of the valve body and an end portion extending beyond the bonnet portion, the valve stem being rotatable between a first limit position and a second limit position, and a spring return handle arrangement. The spring return handle arrangement includes a user graspable valve handle, a stem adapter, and a return spring. The stem adapter includes a first end portion secured to the valve stem and a second end portion secured to the valve handle. The return spring includes a first end portion secured to the valve body, an intermediate spring loaded portion, and a second end portion secured to the stem adapter to apply a torsional load to the stem adapter for returning the valve stem to the first rotational limit position.Type: ApplicationFiled: January 4, 2022Publication date: July 21, 2022Inventors: Matthew Dixon, Karim Mahraz
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Patent number: 10976118Abstract: A flow control device includes a body and a flow control element. The body includes a thermal conditioning passage disposed within a side wall, disconnected from a flow passage, and extending between a first conditioning port and a second conditioning port. The thermal conditioning passage has a first portion extending circumferentially around a first circumferential portion of the interior surface of the flow passage, a second portion axially spaced from the first portion by a first axial U-shaped bend and extending circumferentially around the first circumferential portion and a second circumferential portion of the interior surface of the flow passage to form a first circumferential U-shaped bend, and a third portion axially spaced from the second portion by a second axial U-shaped bend and extending circumferentially around the second circumferential portion of the interior surface of the flow passage.Type: GrantFiled: April 6, 2020Date of Patent: April 13, 2021Assignee: SWAGELOK COMPANYInventors: Matthew R. Dixon, Karim Mahraz, Bryan S. Reiger, Robert Bianco, Jeremy Elek, Andrew P. Marshall
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Publication number: 20200232727Abstract: A flow control device includes a body and a flow control element. The body includes a thermal conditioning passage disposed within a side wall, disconnected from a flow passage, and extending between a first conditioning port and a second conditioning port. The thermal conditioning passage has a first portion extending circumferentially around a first circumferential portion of the interior surface of the flow passage, a second portion axially spaced from the first portion by a first axial U-shaped bend and extending circumferentially around the first circumferential portion and a second circumferential portion of the interior surface of the flow passage to form a first circumferential U-shaped bend, and a third portion axially spaced from the second portion by a second axial U-shaped bend and extending circumferentially around the second circumferential portion of the interior surface of the flow passage.Type: ApplicationFiled: April 6, 2020Publication date: July 23, 2020Inventors: Matthew R. Dixon, Karim Mahraz, Bryan S. Reiger, Robert Bianco, Jeremy Elek, Andrew P. Marshall
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Patent number: 10648749Abstract: A flow control device includes a body having an upper portion defining a flow passage extending axially along a primary axis between a first end port and a second end port, the flow passage defining a central cavity between the first and second end ports, and a lower portion defining an axially extending thermal conditioning inlet port and an axially extending thermal conditioning outlet port. A flow control element is disposed in the central cavity and movable to control fluid flow between the first end port and the second end port. The body further includes a thermal conditioning passage having a first vertical portion extending from the thermal conditioning inlet port into the upper portion of the body, a circumferential portion extending from the first vertical portion circumferentially around at least a portion of the flow passage, and a second vertical portion extending vertically from the circumferential portion to the thermal conditioning outlet port.Type: GrantFiled: March 2, 2018Date of Patent: May 12, 2020Assignee: SWAGELOK COMPANYInventors: Matthew R. Dixon, Karim Mahraz, Bryan S. Reiger, Robert Bianco, Jeremy Elek, Andrew P. Marshall
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Publication number: 20180259270Abstract: A flow control device includes a body having an upper portion defining a flow passage extending axially along a primary axis between a first end port and a second end port, the flow passage defining a central cavity between the first and second end ports, and a lower portion defining an axially extending thermal conditioning inlet port and an axially extending thermal conditioning outlet port. A flow control element is disposed in the central cavity and movable to control fluid flow between the first end port and the second end port. The body further includes a thermal conditioning passage having a first vertical portion extending from the thermal conditioning inlet port into the upper portion of the body, a circumferential portion extending from the first vertical portion circumferentially around at least a portion of the flow passage, and a second vertical portion extending vertically from the circumferential portion to the thermal conditioning outlet port.Type: ApplicationFiled: March 2, 2018Publication date: September 13, 2018Inventors: Matthew R. Dixon, Karim Mahraz, Bryan S. Reiger, Robert Bianco, Jeremy Elek, Andrew P. Marshall
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Patent number: D886237Type: GrantFiled: September 4, 2018Date of Patent: June 2, 2020Assignee: SWAGELOK COMPANYInventors: Matthew R. Dixon, Karim Mahraz, Bryan S. Reiger, Robert Bianco, Jeremy Elek, Andrew P. Marshall
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Patent number: D895772Type: GrantFiled: April 8, 2020Date of Patent: September 8, 2020Assignee: SWAGELOK COMPANYInventors: Matthew R. Dixon, Karim Mahraz, Bryan S. Reiger, Robert Bianco, Jeremy Elek, Andrew P. Marshall