Patents by Inventor Don A. Hamilton
Don A. Hamilton 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).
-
Patent number: 11885513Abstract: A packaged, pumped liquid, evaporative-condensing recirculating ammonia refrigeration system with charges of 10 lbs or less of refrigerant per ton of refrigeration capacity. The compressor and related components are situated inside the plenum of a standard evaporative condenser unit, and the evaporator is close coupled to the evaporative condenser. Single or dual phase cyclonic separators may also be housed in the plenum of the evaporative condenser.Type: GrantFiled: June 15, 2021Date of Patent: January 30, 2024Assignee: Evapco, Inc.Inventors: Kurt L. Liebendorfer, Gregory S. Derosier, Trevor Hegg, Sarah L. Ferrari, Don Hamilton, Nicholas Hesser, Kenneth Wright
-
Publication number: 20230108961Abstract: A packaged, pumped liquid, evaporative-condensing recirculating ammonia refrigeration system with charges of 10 lbs or less of refrigerant per ton of refrigeration capacity. The compressor and related components are situated inside the plenum of a standard evaporative condenser unit, and the evaporator is close coupled to the evaporative condenser. Single or dual phase cyclonic separators may also be housed in the plenum of the evaporative condenser.Type: ApplicationFiled: June 15, 2021Publication date: April 6, 2023Inventors: Kurt L. Liebendorfer, Gregory S. Derosier, Trevor Hegg, Sarah L. Ferrari, Don Hamilton, Nicholas Hesser, Kenneth Wright
-
Patent number: 11035594Abstract: A packaged, pumped liquid, evaporative-condensing recirculating ammonia refrigeration system with charges of 10 lbs or less of refrigerant per ton of refrigeration capacity. The compressor and related components are situated inside the plenum of a standard evaporative condenser unit, and the evaporator is close coupled to the evaporative condenser. Single or dual phase cyclonic separators may also be housed in the plenum of the evaporative condenser.Type: GrantFiled: December 12, 2017Date of Patent: June 15, 2021Assignee: Evapco, Inc.Inventors: Kurt L. Liebendorfer, Gregory S. Derosier, Trevor Hegg, Sarah L. Ferrari, Don Hamilton, Nicholas Hesser, Kenneth Wright
-
Publication number: 20180163998Abstract: A packaged, pumped liquid, evaporative-condensing recirculating ammonia refrigeration system with charges of 10 lbs or less of refrigerant per ton of refrigeration capacity. The compressor and related components are situated inside the plenum of a standard evaporative condenser unit, and the evaporator is close coupled to the evaporative condenser. Prior art large receiver vessels may be replaced with a single or dual phase cyclonic separator also housed in the plenum of the evaporative condenser.Type: ApplicationFiled: December 12, 2017Publication date: June 14, 2018Inventors: Kurt L. Liebendorfer, Gregory S. Derosier, Trevor Hegg, Sarah L. Ferrari, Don Hamilton, Nicholas Hesser, Kenneth Wright
-
Patent number: 7937815Abstract: An apparatus for securing a trim cover to a foam pad includes a base and a platform coupled thereto that defines a working surface for supporting the foam pad thereon. A plurality of actuators project from the working surface. Each actuator is capable of movement away from and toward the working surface and includes a pair of retaining fingers capable of movement between an open and closed position. In use, the retaining fingers grasp a first connecting member on the trim cover and move the first connecting member toward the working surface as the actuators are moved toward the working surface so as to engage the first connecting member with a second connecting member in the foam pad thereby securing the trim cover to the foam pad.Type: GrantFiled: September 19, 2008Date of Patent: May 10, 2011Assignee: Lear CorporationInventors: Larry Hamilton, Brian Zapalski, Don Hamilton, James Szura
-
Publication number: 20090007407Abstract: An apparatus for securing a trim cover to a foam pad includes a base and a platform coupled thereto that defines a working surface for supporting the foam pad thereon. A plurality of actuators project from the working surface. Each actuator is capable of movement away from and toward the working surface and includes a pair of retaining fingers capable of movement between an open and closed position. In use, the retaining fingers grasp a first connecting member on the trim cover and move the first connecting member toward the working surface as the actuators are moved toward the working surface so as to engage the first connecting member with a second connecting member in the foam pad thereby securing the trim cover to the foam pad.Type: ApplicationFiled: September 19, 2008Publication date: January 8, 2009Applicant: LEAR CORPORATIONInventors: Larry Hamilton, Brian Zapalski, Don Hamilton, James Szura
-
Patent number: 7430793Abstract: An apparatus for securing a trim cover to a foam pad includes a base and a platform coupled thereto that defines a working surface for supporting the foam pad thereon. A plurality of actuators project from the working surface. Each actuator is capable of movement away from and toward the working surface and includes a pair of retaining fingers capable of movement between an open and closed position. In use, the retaining fingers grasp a first connecting member on the trim cover and move the first connecting member toward the working surface as the actuators are moved toward the working surface so as to engage the first connecting member with a second connecting member in the foam pad thereby securing the trim cover to the foam pad.Type: GrantFiled: July 25, 2005Date of Patent: October 7, 2008Assignee: Lear CorporationInventors: Larry Hamilton, Brian Zapalski, Don Hamilton, James Szura
-
Publication number: 20070017080Abstract: An apparatus for securing a trim cover to a foam pad includes a base and a platform coupled thereto that defines a working surface for supporting the foam pad thereon. A plurality of actuators project from the working surface. Each actuator is capable of movement away from and toward the working surface and includes a pair of retaining fingers capable of movement between an open and closed position. In use, the retaining fingers grasp a first connecting member on the trim cover and move the first connecting member toward the working surface as the actuators are moved toward the working surface so as to engage the first connecting member with a second connecting member in the foam pad thereby securing the trim cover to the foam pad.Type: ApplicationFiled: July 25, 2005Publication date: January 25, 2007Inventors: Larry Hamilton, Brian Zapalski, Don Hamilton, James Szura
-
Patent number: 6832503Abstract: The present invention relates to a weight-drop machine for calibrating and verifying the calibration of an occupant detection system in a vehicle. The machine comprises a lift frame that is adapted to support and lift a seat pallet toward a keeper plate to cause the pallet to engage the keeper plate so that the pallet is prevented from movement. Another weight-drop machine a weight supported for movement relative to a frame, which, in turn, is supported for movement in a direction having both a horizontal component and a vertical component of movement in a single motion. Yet another weight-drop machine comprises one or more sensors that are adapted to sense the position of a vehicle seat. Still another weight-drop machine comprises a sensor for measuring displacement of the drop weight. A towel bar lift may be provided for lifting a towel bar for operating a manual seat lock mechanism.Type: GrantFiled: December 18, 2002Date of Patent: December 21, 2004Assignee: Lear CorporationInventors: Mark Marentic, John Sapielak, Roland Monk, Derek Thomas, Gary Rock, Glenn Kremer, Don Hamilton, Greg Krom, Matt Debusk, Troy Deuchler, John Nathan
-
Publication number: 20040118178Abstract: The present invention relates to a weight-drop machine for calibrating and verifying the calibration of an occupant detection system in a vehicle. The machine comprises a lift frame that is adapted to support and lift a seat pallet toward a keeper plate to cause the pallet to engage the keeper plate so that the pallet is prevented from movement. Another weight-drop machine a weight supported for movement relative to a frame, which, in turn, is supported for movement in a direction having both a horizontal component and a vertical component of movement in a single motion. Yet another weight-drop machine comprises one or more sensors that are adapted to sense the position of a vehicle seat. Still another weight-drop machine comprises a sensor for measuring displacement of the drop weight. A towel bar lift may be provided for lifting a towel bar for operating a manual seat lock mechanism.Type: ApplicationFiled: December 18, 2002Publication date: June 24, 2004Inventors: Mark Marentic, John Sapielak, Roland Monk, Derek Thomas, Gary Rock, Glenn Kremer, Don Hamilton, Greg Krom, Matt Debusk, Troy Deuchler, John Nathan
-
Patent number: 6643925Abstract: An installation device for installing a flexible sensor apparatus on a seating surface of a seat cushion includes an installation fixture having a saddle. The saddle includes a first face having a seating portion recess formed therein which generally conforms to the shape of the seating surface of the seat cushion. The first face further has at least one locating recess formed in the seating portion recess. The locating recess generally conforms to the shape of a portion of the flexible sensor apparatus. The saddle further has ports extending from the locating recess to a vacuum source, wherein a vacuum from the vacuum source retains the flexible sensor apparatus in the locating recess.Type: GrantFiled: September 1, 2000Date of Patent: November 11, 2003Assignee: Lear CorporationInventors: Raymond J. Ormachea, Don Hamilton, Paul S. Severinski, Alan A. Boisvert
-
Patent number: 6578722Abstract: The present invention is for a portable hoist assembly that includes a base member, an upright support member and a boom. A winch and line are attached to the hoist assembly with an engagement member for lifting objects. The base member attaches to a receiving member. The receiving member may be a trailer hitch on a vehicle. The boom and base member pivot with respect to the support member to a collapsed storage position. The boom and base member extend substantially parallel to the support member, and an end of the boom attaches to the base member. The engagement member is inserted within the base member for storage.Type: GrantFiled: June 29, 2001Date of Patent: June 17, 2003Inventors: Scott Perkins, Don Hamilton
-
Publication number: 20030000906Abstract: The present invention is for a portable hoist assembly that includes a base member, an upright support member and a boom. A winch and line are attached to the hoist assembly with an engagement member for lifting objects. The base member attaches to a receiving member. The receiving member may be a trailer hitch on a vehicle. The boom and base member pivot with respect to the support member to a collapsed storage position. The boom and base member extend substantially parallel to the support member, and an end of the boom attaches to the base member. The engagement member is inserted within the base member for storage.Type: ApplicationFiled: June 29, 2001Publication date: January 2, 2003Inventors: Scott Perkins, Don Hamilton
-
Patent number: 6083337Abstract: An assembly for use in bonding an trim cover to a foam pad along a pair of conveyor line in a process of a plurality of stations. A plurality of tool carriers are transported along each of the conveyor lines to each station. The tool carrier supports at least one mold assembly for bonding an air impervious adhesive film between the cover and the foam pad. A collar assembly pivotally supports a press platen above the mold assembly and provides pivotal movement between an open position spaced at a predetermined angle above the mold assembly and a closed position compressing the foam pad against the trim cover and mold assembly. The tool carrier includes a pair of vacuum inlet connectors for engagement by a vacuum snorkel to provide vacuum pressure to the mold assembly and travel with the tool carrier along the conveyor line between consecutive process stations.Type: GrantFiled: June 19, 1998Date of Patent: July 4, 2000Assignee: Lear CorporationInventors: Robert Bailey, Scott Barber, John Sapielak, Ron Monk, Dennis Sosnowski, Raymond Ormachea, Brian Scholfield, Don Hamilton
-
Patent number: 5367975Abstract: A spray skirt (A) is disclosed for covering the cockpit opening (14) of a kayak (10). The spray skirt includes a fabric cover (24) for spanning the opening which includes an elastic band (B) secured around the perimeter of the cover for retaining the spray skirt about a rim (16) of the opening. The retaining band includes outer and inner elastic bands (30, 32) joined by a compressible bulbous retention element (34, 40). The inner band 32 is of sufficient width to prevent contact of the interior fabric (24b) of the cover from being abraded by lip contact. The preformed outer band (30) includes a first outer band (30a) extending from the bulbous element upwardly and outwardly terminating at a bend (35), and a second outer band (30b) extending from the bend upwardly and inwardly.Type: GrantFiled: December 14, 1992Date of Patent: November 29, 1994Inventors: Don A. Hamilton, William E. Masters
-
Patent number: 4605378Abstract: A double-bladed kayak paddle (A, B) is disclosed which includes first and second blade sections (10, 12) having a paddle blade (14, 18) carried on one end thereof, and jointed ends (16, 20) carried on opposing ends thereof. The jointed ends are fitted together to form a joint (C) which effectively prevents torque forces from being placed on a latch mechanism (D). The latch mechanism includes a latch button (24) carried within a hollow sleeve (22) which interfits within hollow portions of the first and second blade sections (10, 12). Latch openings (32, 34 and 60, 62) are circumferentially spaced around the first section (10) to provide a number of operational positions for different operational blade configurations. Various right and left hand control configurations are provided for the paddle, as well as feathered and nonfeathered configurations.Type: GrantFiled: December 20, 1984Date of Patent: August 12, 1986Inventor: Don A. Hamilton
-
Patent number: 4583480Abstract: A spray skirt (A) is disclosed for covering the cockpit opening (14) of a kayak (10). The spray skirt includes a fabric cover (24) for spanning the opening which includes an elastic band (B) secured around the perimeter of the cover for retaining the spray skirt about a rim (16) of the opening. The retaining band includes outer and inner elastic bands (30, 32) joined by a compressible bulbous retaining element (34). The bulbous retaining element is rounded and rolls over a lip (18) of the rim and compresses to interlock in a channel (36) beneath the lip. The inner band 32 is of sufficient width to prevent contact of the interior fabric (24b) of the cover from being abraded by lip contact. Upon initial rolling of the retaining element (34) over the lip, the entire retaining band snaps off the rim for quick removal.Type: GrantFiled: February 6, 1984Date of Patent: April 22, 1986Inventors: Don A. Hamilton, William E. Masters