Patents by Inventor Joshua Grzybowski
Joshua Grzybowski 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: 10883249Abstract: A method of retaining a hammer tool in the front head of a powercell assembly of a hammer assembly includes biasing a hammer tool retaining pin such that a portion of the tool retaining pin extends into a tool receiving bore of the front head of the powercell assembly, holding a hammer tool in the tool receiving bore of the front head of the powercell assembly via the tool retaining pin, and releasing the hammer tool remotely from the hammer assembly.Type: GrantFiled: April 6, 2018Date of Patent: January 5, 2021Assignee: Caterpillar Inc.Inventors: Joshua Grzybowski, Dennis Wai Man Tang, Francis Eric Fortner, Curtis A. Henning
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Publication number: 20190309498Abstract: A method of retaining a hammer tool in the front head of a powercell assembly of a hammer assembly includes biasing a hammer tool retaining pin such that a portion of the tool retaining pin extends into a tool receiving bore of the front head of the powercell assembly, holding a hammer tool in the tool receiving bore of the front head of the powercell assembly via the tool retaining pin, and releasing the hammer tool remotely from the hammer assembly.Type: ApplicationFiled: April 6, 2018Publication date: October 10, 2019Applicant: Caterpillar Inc.Inventors: Joshua Grzybowski, Dennis Wai Man Tang, Francis Eric Fortner, Curtis A. Henning
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Patent number: 10384336Abstract: A hydraulic hammer assembly is provided. The hydraulic hammer assembly includes a housing and a piston is arranged for reciprocating movement along a longitudinal axis within the housing. A head disposed along the longitudinal axis on an end of the housing and defines a chamber for holding a pressurized gas. The hydraulic hammer assembly further includes a locking mechanism to lock the head on the housing. The locking mechanism includes at least one first flange extending radially from the end of the housing and at least one second flange extending radially from the head, wherein the head is retained on the housing by blocking axial movement of the second flange against the first flange when in a locked position.Type: GrantFiled: April 12, 2016Date of Patent: August 20, 2019Assignee: Caterpillar Inc.Inventors: Joshua Grzybowski, Cody Moore
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Patent number: 10377028Abstract: A hydraulic hammer is provided. The hydraulic hammer includes a fluid inlet configured to receive a pressurized fluid for running the hydraulic hammer and a fluid outlet for discharging hydraulic fluid from the hydraulic hammer. A bypass passage fluidly connects the fluid inlet and the fluid outlet, the bypass passage has a bypass inlet fluidly connected to the fluid inlet and a bypass outlet fluidly connected to the fluid outlet. An automatic shut-off valve is disposed in the bypass passage between the bypass inlet and the bypass outlet and is configured to open or close the bypass passage. The automatic shut-off valve is configured to open the bypass passage under pressure of the pressurized fluid on continuous running of the hydraulic hammer for a set time to stop the hammer.Type: GrantFiled: March 14, 2016Date of Patent: August 13, 2019Assignee: Caterpillar Inc.Inventors: Joshua Grzybowski, Cody Moore
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Patent number: 10286535Abstract: A method of regulating the disassembly of a component from a powered tool assembly that uses a pressurized fluid and a locking member that is in operative association or communication with the fluid is provided. The method comprises biasing the locking member into a locked configuration using the pressurized fluid, preventing movement of the component in a first predetermined direction.Type: GrantFiled: March 30, 2016Date of Patent: May 14, 2019Assignee: Caterpillar Inc.Inventors: Cody Moore, Joshua Grzybowski
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Publication number: 20180147708Abstract: A method of retaining and removing a valve locking body from a powered hammer assembly comprises inserting a locking member into a radially extending aperture of a cylinder, inserting a spring until the spring contacts the locking member; and inserting a keeper radially inwardly of the spring and the locking member and attaching the keeper to the cylinder.Type: ApplicationFiled: November 29, 2016Publication date: May 31, 2018Applicant: Caterpillar Inc.Inventors: Joshua Grzybowski, Cody Moore
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Publication number: 20170291290Abstract: A hydraulic hammer assembly is provided. The hydraulic hammer assembly includes a housing and a piston is arranged for reciprocating movement along a longitudinal axis within the housing. A head disposed along the longitudinal axis on an end of the housing and defines a chamber for holding a pressurized gas. The hydraulic hammer assembly further includes a locking mechanism to lock the head on the housing. The locking mechanism includes at least one first flange extending radially from the end of the housing and at least one second flange extending radially from the head, wherein the head is retained on the housing by blocking axial movement of the second flange against the first flange when in a locked position.Type: ApplicationFiled: April 12, 2016Publication date: October 12, 2017Applicant: Caterpillar Inc.Inventors: Joshua Grzybowski, Cody Moore
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Publication number: 20170282343Abstract: A method of regulating the disassembly of a component from a powered tool assembly that uses a pressurized fluid and a locking member that is in operative association or communication with the fluid is provided. The method comprises biasing the locking member into a locked configuration using the pressurized fluid, preventing movement of the component in a first predetermined direction.Type: ApplicationFiled: March 30, 2016Publication date: October 5, 2017Applicant: Caterpillar Inc.Inventors: Cody Moore, Joshua Grzybowski
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Publication number: 20170259421Abstract: A hydraulic hammer is provided. The hydraulic hammer includes a fluid inlet configured to receive a pressurized fluid for running the hydraulic hammer and a fluid outlet for discharging hydraulic fluid from the hydraulic hammer. A bypass passage fluidly connects the fluid inlet and the fluid outlet, the bypass passage has a bypass inlet fluidly connected to the fluid inlet and a bypass outlet fluidly connected to the fluid outlet. An automatic shut-off valve is disposed in the bypass passage between the bypass inlet and the bypass outlet and is configured to open or close the bypass passage. The automatic shut-off valve is configured to open the bypass passage under pressure of the pressurized fluid on continuous running of the hydraulic hammer for a set time to stop the hammer.Type: ApplicationFiled: March 14, 2016Publication date: September 14, 2017Applicant: Caterpillar Inc.Inventors: Joshua Grzybowski, Cody Moore
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Publication number: 20170157759Abstract: A hammer tool for use with a powered hammer assembly is provided. The hammer tool comprises a body that includes a tool attachment end, a working end, and defines a longitudinal axis from the attachment end to the working end. The body further defines an outlet channel that runs along at least a portion of the longitudinal axis and a check valve that is disposed in the outlet channel.Type: ApplicationFiled: December 8, 2015Publication date: June 8, 2017Applicant: Caterpillar Inc.Inventors: Cody Moore, Joshua Grzybowski
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Publication number: 20160107302Abstract: A charging system for a hydraulic hammer is disclosed. The charging system includes a charge plug. The charge plug is disposed on an opening defined in the wall housing connected to the top end of the power cell of a hammer. The charge plug is fluidly communicated to the chamber via a conduit. The charge plug includes a first compartment. The first compartment is configured to receive a first chemical substance. The charge plug also includes a second compartment. The second compartment is configured to receive a second chemical substance. The first compartment and the second compartment are covered by a membrane. A pressure difference causes collapsing of the membrane to allow the first chemical substance and the second chemical substance is allowed to react with each other. The reaction of the first chemical substance and the second chemical substance pressurizes the air within the chamber to a desired pressure.Type: ApplicationFiled: December 29, 2015Publication date: April 21, 2016Applicant: Caterpillar Inc.Inventors: Cody T. Moore, Joshua Grzybowski