Patents by Inventor Bipin Kashid
Bipin Kashid 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: 11480200Abstract: An example valve includes: (i) a valve body comprising a supply port and an operating port; (ii) a sleeve comprising a first opening fluidly coupled to the supply port, a second opening fluidly coupled to the operating port, and a seat; (in) a spool configured to move axially within the sleeve, wherein the spool is configured to he seated on the seat of the sleeve when the valve is unactuated, and wherein when the valve is actuated, the spool moves such that a gap is formed at the seat; and (iv) a flow restriction disposed downstream of the gap, wherein when the valve is actuated, fluid is allowed to flow from the supply port through the first opening and the gap and through die flow? restriction prior to flowing through the second opening to the operating port, such that the flow restriction generates an increased pressure level at the gap.Type: GrantFiled: July 24, 2019Date of Patent: October 25, 2022Assignee: Parker-Hannifin CorporationInventors: Brian Slattery, Bipin Kashid
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Patent number: 11428329Abstract: An example valve includes a valve body having a first port and a second port; a poppet movable within the valve body and comprising (i) a conical surface, (ii) an exterior cylindrical surface, and (iii) an annular groove; and a seal disposed in the annular groove of the poppet, wherein the poppet is movable to a partially-unseated position in which the poppet moves to form a flow area allowing fluid flow from the first port to the second port, wherein the exterior cylindrical surface of the poppet forms a flow restriction with the interior surface of the valve body downstream from the flow area, wherein the conical surface is configured to direct fluid toward the interior surface of the valve body, away from the seal, and wherein the flow restriction generates back-pressure around the seal to reduce velocity of fluid around the seal.Type: GrantFiled: July 12, 2021Date of Patent: August 30, 2022Assignee: Parker-Hannifin CorporationInventors: Brian B. Slattery, Bipin Kashid
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Publication number: 20220074501Abstract: An example valve includes a valve body having a first port and a second port; a poppet movable within the valve body and comprising (i) a conical surface, (ii) an exterior cylindrical surface, and (iii) an annular groove; and a seal disposed in the annular groove of the poppet, wherein the poppet is movable to a partially-unseated position in which the poppet moves to form a flow area allowing fluid flow from the first port to the second port, wherein the exterior cylindrical surface of the poppet forms a flow restriction with the interior surface of the valve body downstream from the flow area, wherein the conical surface is configured to direct fluid toward the interior surface of the valve body, away from the seal, and wherein the flow restriction generates back-pressure around the seal to reduce velocity of fluid around the seal.Type: ApplicationFiled: July 12, 2021Publication date: March 10, 2022Inventors: Brian B. Slattery, Bipin Kashid
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Publication number: 20210262494Abstract: An example valve includes: (i) a valve body comprising a supply port and an operating port; (ii) a sleeve comprising a first opening fluidly coupled to the supply port, a second opening fluidly coupled to the operating port, and a seat; (in) a spool configured to move axially within the sleeve, wherein the spool is configured to he seated on the seat of the sleeve when the valve is unactuated, and wherein when the valve is actuated, the spool moves such that a gap is formed at the seat; and (iv) a flow restriction disposed downstream of the gap, wherein when the valve is actuated, fluid is allowed to flow from the supply port through the first opening and the gap and through die flow? restriction prior to flowing through the second opening to the operating port, such that the flow restriction generates an increased pressure level at the gap.Type: ApplicationFiled: July 24, 2019Publication date: August 26, 2021Inventors: Brian Slattery, Bipin Kashid
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Patent number: 11054046Abstract: An example valve includes: (i) a valve body defining a longitudinal cavity, where the valve body includes a supply inlet and an operating outlet; (ii) a cage disposed in the longitudinal cavity, where the cage includes (a) a first opening fluidly coupled to the supply outlet, and (b) a second opening fluidly coupled to the operating outlet; and (iii) a spool mounted within the cage and configured to move axially therein. When the valve is actuated, the spool moves within the cage to form a gap, thereby allowing pressurized fluid to flow from the supply inlet through the first opening, the gap, and the second opening to the operating outlet. A flow area defined around an exterior peripheral surface of the spool changes upstream from the gap at a first rate, and changes downstream from the gap at a second rate that is different from the first rate.Type: GrantFiled: September 13, 2017Date of Patent: July 6, 2021Assignee: Parker-Hannifin CorporationInventors: Aaron Michael Morgan, Bipin Kashid, Charlie Seidel
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Publication number: 20210131572Abstract: An example valve includes: (i) a valve body defining a longitudinal cavity, where the valve body includes a supply inlet and an operating outlet; (ii) a cage disposed in the longitudinal cavity, where the cage includes (a) a first opening fluidly coupled to the supply outlet, and (b) a second opening fluidly coupled to the operating outlet; and (iii) a spool mounted within the cage and configured to move axially therein. When the valve is actuated, the spool moves within the cage to form a gap, thereby allowing pressurized fluid to flow from the supply inlet through the first opening, the gap, and the second opening to the operating outlet. A flow area defined around an exterior peripheral surface of the spool changes upstream from the gap at a first rate, and changes downstream from the gap at a second rate that is different from the first rate.Type: ApplicationFiled: September 13, 2017Publication date: May 6, 2021Inventors: Aaron Michael Morgan, Bipin Kashid, Charlie Seidel
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Patent number: 10502240Abstract: An example valve section includes: a housing having: (i) a longitudinal bore, (ii) a first and second workport passages configured to be fluidly coupled to an actuator, (iii) a first and second return passages, (iv) an open-center passage configured to be fluidly coupled to a source of fluid, and (v) a supply passage disposed between the first and second workport passages. The valve section also includes a spool movable in the longitudinal bore to shift between: (i) a neutral position that allows the open-center passage to permit fluid flow therethrough, and (ii) a shifted position that allows fluid to be diverted from the open-center passage to the supply passage, and connects the supply passage to either the first or second workport passage while connecting the other workport passage to a corresponding return passage of the first and second return passages.Type: GrantFiled: May 2, 2019Date of Patent: December 10, 2019Assignee: Parker-Hannifin CorporationInventors: Brian Slattery, Christopher J. Webber, Bipin Kashid
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Publication number: 20190257325Abstract: An example valve section includes: a housing having: (i) a longitudinal bore, (ii) a first and second workport passages configured to be fluidly coupled to an actuator, (iii) a first and second return passages, (iv) an open-center passage configured to be fluidly coupled to a source of fluid, and (v) a supply passage disposed between the first and second workport passages. The valve section also includes a spool movable in the longitudinal bore to shift between: (i) a neutral position that allows the open-center passage to permit fluid flow therethrough, and (ii) a shifted position that allows fluid to be diverted from the open-center passage to the supply passage, and connects the supply passage to either the first or second workport passage while connecting the other workport passage to a corresponding return passage of the first and second return passages.Type: ApplicationFiled: May 2, 2019Publication date: August 22, 2019Inventors: Brian Slattery, Christopher J. Webber, Bipin Kashid
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Patent number: 10323659Abstract: An example valve section includes: a housing having: (i) a longitudinal bore, (ii) a first and second workport passages configured to be fluidly coupled to an actuator, (iii) a first and second return passages, (iv) an open-center passage configured to be fluidly coupled to a source of fluid, and (v) a supply passage disposed between the first and second workport passages. The valve section also includes a spool movable in the longitudinal bore to shift between: (i) a neutral position that allows the open-center passage to permit fluid flow therethrough, and (ii) a shifted position that allows fluid to be diverted from the open-center passage to the supply passage, and connects the supply passage to either the first or second workport passage while connecting the other workport passage to a corresponding return passage of the first and second return passages.Type: GrantFiled: February 15, 2018Date of Patent: June 18, 2019Assignee: Parker-Hannifin CorporationInventors: Brian Slattery, Christopher J. Webber, Bipin Kashid
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Publication number: 20180335057Abstract: An example valve section includes: a housing having: (i) a longitudinal bore, (ii) a first and second workport passages configured to be fluidly coupled to an actuator, (iii) a first and second return passages, (iv) an open-center passage configured to be fluidly coupled to a source of fluid, and (v) a supply passage disposed between the first and second workport passages. The valve section also includes a spool movable in the longitudinal bore to shift between: (i) a neutral position that allows the open-center passage to permit fluid flow therethrough, and (ii) a shifted position that allows fluid to be diverted from the open-center passage to the supply passage, and connects the supply passage to either the first or second workport passage while connecting the other workport passage to a corresponding return passage of the first and second return passages.Type: ApplicationFiled: February 15, 2018Publication date: November 22, 2018Inventors: Brian Slattery, Christopher J. Webber, Bipin Kashid