Patents by Inventor Eric J. Chalmers
Eric J. Chalmers 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: 20180252210Abstract: The invention features a seal assembly for a high pressure liquid system. The seal assembly includes a seal carrier having a base portion defining a proximal end, a distal end, and a bore. The seal carrier also includes a seal disposed within the bore of the seal carrier. The seal carrier also includes a backup ring disposed within the bore of the seal carrier. The seal carrier also includes a hoop ring disposed substantially between the seal and the backup ring, the hoop ring having a proximal surface and an outer surface.Type: ApplicationFiled: May 4, 2018Publication date: September 6, 2018Inventors: David Osterhouse, Eric J. Chalmers, Jon W. Lindsay, Arion Vandergon, Cedar J. Vandergon
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Patent number: 9989054Abstract: The invention features a seal assembly for a high pressure liquid system. The seal assembly includes a seal carrier having abuse portion defining a proximal end, a distal end, and a bore. The seal carrier also includes a seal disposed within the bore of the seal carrier. The seal carrier also includes a backup ring disposed within the bore of the seal carrier. The seal carrier also includes a hoop ring disposed substantially between the seal and the backup ring, the hoop ring having a proximal surface and an outer surface.Type: GrantFiled: March 9, 2015Date of Patent: June 5, 2018Assignee: Hypertherm, Inc.Inventors: David Osterhouse, Eric J. Chalmers, Jon W. Lindsay, Arion Vandergon, Cedar J. Vandergon
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Patent number: 9687884Abstract: A cleaning tool scraps away undesirable slag which has accumulated on opposite sides of the slat of a worktable. The cleaning tool has a pair of cleaning assemblies each comprising a scraping tool. The scraping tools are positioned on opposite sides of a slat for simultaneously cleaning of the two sides of the slat. A single motor rotates both of the scraping tools. A biasing member retains the two scraping tools in close proximity to the slat as it is claimed.Type: GrantFiled: November 14, 2014Date of Patent: June 27, 2017Assignee: Slatpro LLCInventors: Eric J. Chalmers, David J. Fox, Brent A. Erickson
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Publication number: 20160136695Abstract: A cleaning tool scraps away undesirable slag which has accumulated on opposite sides of the slat of a worktable. The cleaning tool has a pair of cleaning assemblies each comprising a scraping tool. The scraping tools are positioned on opposite sides of a slat for simultaneously cleaning of the two sides of the slat. A single motor rotates both of the scraping tools. A biasing member retains the two scraping tools in close proximity to the slat as it is claimed.Type: ApplicationFiled: November 14, 2014Publication date: May 19, 2016Inventors: Eric J. Chalmers, David J. Fox, Brent A. Erickson
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Patent number: 9144882Abstract: A consumable component of a liquid jet cutting system is provided. The consumable component includes a body defining a conduit for a liquid jet and a signal device located on or within the body for transmitting a signal associated with the consumable component to a reader.Type: GrantFiled: December 20, 2013Date of Patent: September 29, 2015Assignee: Hypertherm, Inc.Inventors: Jon W. Lindsay, Cedar J. Vandergon, Eric J. Chalmers, Michael Hoffa, E. Michael Shipulski
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Publication number: 20150252801Abstract: The invention features a seal assembly for a high pressure liquid system. The seal assembly includes a seal carrier having abuse portion defining a proximal end, a distal end, and a bore. The seal carrier also includes a seal disposed within the bore of the seal carrier. The seal carrier also includes a backup ring disposed within the bore of the seal carrier. The seal carrier also includes a hoop ring disposed substantially between the seal and the backup ring, the hoop ring having a proximal surface and an outer surface.Type: ApplicationFiled: March 9, 2015Publication date: September 10, 2015Inventors: David Osterhouse, Eric J. Chalmers, Jon W. Lindsay, Arion Vandergon, Cedar J. Vandergon
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Publication number: 20140113527Abstract: A consumable component of a liquid jet cutting system is provided. The consumable component includes a body defining a conduit for a liquid jet and a signal device located on or within the body for transmitting a signal associated with the consumable component to a reader.Type: ApplicationFiled: December 20, 2013Publication date: April 24, 2014Applicant: Hypertherm, Inc.Inventors: Jon W. Lindsay, Cedar J. Vandergon, Eric J. Chalmers, Michael Hoffa, E. Michael Shipulski
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Publication number: 20140072453Abstract: An apparatus and method of graphically indicating the performance of intensifier pumps used in water-jet cutting utilizes output signals from end-of-stroke proximity sensors to establish stroke times for the pump's plungers. The stroke times are then used to present bar graphs for each plunger reflecting the magnitude of the time valve by the height of the bars and performance status by the color of the bars.Type: ApplicationFiled: September 7, 2012Publication date: March 13, 2014Applicant: HYPERTHERM, INC.Inventors: Cedar J. Vandergon, Eric J. Chalmers
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Patent number: 5273405Abstract: A cushioning means for an intensifier for delivering ultra high pressure water to the cutting head of a water jet cutting apparatus. The intensifier has a power piston and cylinder assembly connected to secondary fluid pumping piston members which extend into pumping chambers located at opposite ends of the hydraulic piston and cylinder assembly, and in a common housing. Inlet poppet valves located in the pumping chambers control the flow of water from inlet passage into the pumping chambers while outlet poppet valves allow ultra high pressure water to be pumped out of the pumping chamber into an accumulator fluidly connected to the cutting head. Hydraulic fluid under pressure is sequentially directed to opposite ends of the piston and cylinder assembly, with the piston and cylinder assembly being provided with cushioning means to assist in smooth deceleration of the piston during each stroke or cycle.Type: GrantFiled: July 7, 1992Date of Patent: December 28, 1993Assignee: Jet Edge, Inc.Inventors: Eric J. Chalmers, David P. LaFavor
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Patent number: 5092744Abstract: An intensifier for delivering ultra high pressure water to a cutting head of a water jet cutting apparatus. The intensifier has a power piston and cylinder assembly connected to piston members extended into pumping chambers in housing located at opposite ends of the piston and cylinder assembly. Inlet poppet valves located in the pumping chambers control the flow of water from inlet passages into the pumping chambers. Outlet poppet valves allow ultra high pressure water to be pumped out of the pumping chamber into an accumulator fluidly connected to the cutting head. Hydraulic fluid under pressure is sequentially directed to opposite ends of the piston and cylinder assembly with a solenoid operated reversing valve. Limit switches operable in response to movement of the piston members control the reversing valve. Linear motion transfer mechanisms are moved with ramps on the piston members to actuate the limit switches to control the reciprocating action of the piston and cylinder assembly.Type: GrantFiled: March 14, 1990Date of Patent: March 3, 1992Assignee: Possis CorporationInventors: Arie Boers, Eric J. Chalmers
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Patent number: 5052624Abstract: An ultra high pressure water tool has a nozzle assembly equipped with a fan tip that discharges a relatively flat stream of ultra high pressure water to a surface to remove coatings and flashings. The fan tip has a body containing an elongated passage and a layer of super hard material having an elongated discharge orifice open to the passage.Type: GrantFiled: December 1, 1989Date of Patent: October 1, 1991Assignee: Possis CorporationInventors: Arie N. Boers, Eric J. Chalmers
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Patent number: 5018670Abstract: A cutting head for a water jet cutting machine has a body removably supporting a holder with an orifice element, and insert with a chamber, and a nozzle having a passage in alignment with the water flow path through the head. The holder has a cone shaped surface that fits into a complimentary shaped cone recess to align the aperture of the orifice element with the axis of a water inlet chamber. The insert is retained within a transverse bore in the body to align its chamber with the axis of the aperture. A griping collet holds the nozzle on the body and aligns the passage of the nozzle with the axis of the aperture so that aperture, insert chamber, and the passage of the nozzle are linearly aligned with each other to form the water flow path through the nozzle.Type: GrantFiled: January 10, 1990Date of Patent: May 28, 1991Assignee: Possis CorporationInventor: Eric J. Chalmers