Patents by Inventor Harold A. McMaster

Harold A. McMaster 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).

  • Publication number: 20020117125
    Abstract: A closed loop fuel system (10) for an internal combustion engine (12) includes a water tank (14) in which water is electrolyzed to provide hydrogen and oxygen gases that are pressurized for storage in respective tanks (26, 30) for flow to the engine and combustion prior to exhaust flow to a condenser (40) and recycling back into the water tank. The fuel system (10) includes an auxiliary water supply (68) that lowers the burn temperature of the engine and provides additional steam under pressure for operation of the engine as well as providing cooling of the exhaust steam condensed by the condenser (40). A photovoltaic panel (52) can be used to electrolyze the water and provide the hydrogen and oxygen gases.
    Type: Application
    Filed: May 4, 2001
    Publication date: August 29, 2002
    Applicant: McMaster Fuel, Ltd.
    Inventors: Harold A. McMaster, Robert G. McMaster
  • Publication number: 20020117124
    Abstract: A closed loop fuel system (10) for an internal combustion engine (12) includes a water tank (14) in which water is electrolyzed to provide hydrogen and oxygen gases that are pressurized for storage in respective tanks (26, 30) for flow to the engine and combustion prior to exhaust flow to a condenser (40) and recycling back into the water tank. The fuel system (10) includes an auxiliary water supply (68) that lowers the burn temperature of the engine and provides additional steam under pressure for operation of the engine as well as providing cooling of the exhaust steam condensed by the condenser (40). A photovoltaic panel (52) can be used to electrolyze the water and provide the hydrogen and oxygen gases.
    Type: Application
    Filed: February 27, 2001
    Publication date: August 29, 2002
    Inventors: Harold A. McMaster, Robert G. McMaster
  • Patent number: 6390052
    Abstract: A wobble plate engine (20) includes a wobble plate assembly (26) having a wobble plate (58) that rolls against truncated cone portions (42) of a housing (22) and has an inner extremity (60) rotatably supported by an axially inclined annular bearing (49, 49′) on a spherical member (46) of the wobble plate assembly so as to rotate a shaft (24) during the wobbling motion. One embodiment of the wobble engine (20) includes an oil lubrication system (114) and another embodiment includes antifriction roller bearings (220) that support the wobble plate (58) on the spherical member (46), antifriction roller bearings (224) that rotatively support the shaft (24) on the housing (22′) and seals (226) that rotatively seal between the shaft (24) and the housing (22′).
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: May 21, 2002
    Assignee: McMaster Motor Company
    Inventors: Harold A. McMaster, Robert G. McMaster
  • Publication number: 20020043238
    Abstract: A wobble plate engine (20) includes a wobble plate assembly (26) having a wobble plate (58) that rolls against truncated cone portions (42) of a housing (22) and has an inner extremity (60) rotatably supported by an axially inclined annular bearing (49, 49′) on a spherical member (46) of the wobble plate assembly so as to rotate a shaft (24) during the wobbling motion. One embodiment of the wobble engine (20) includes an oil lubrication system (114) and another embodiment includes antifriction roller bearings (220) that support the wobble plate (58) on the spherical member (46), antifriction roller bearings (224) that rotatively support the shaft (24) on the housing (22′) and seals (226) that rotatively seal between the shaft (24) and the housing (22′).
    Type: Application
    Filed: February 5, 2001
    Publication date: April 18, 2002
    Inventors: Harold A. McMaster, Robert G. McMaster
  • Patent number: 6058740
    Abstract: A deposition system (20) for depositing a material layer on a glass sheet substrate includes a lateral alignment mechanism (28) for laterally aligning glass sheet substrates with an ingress seal (48) of a deposition station (22). The lateral alignment mechanism (28) includes a pair of banks (164, 166) of alignment members (168) spaced laterally with respect to each other along the direction of conveyance. Round alignment surfaces (170) of the alignment members (168) are located above conveyor rolls (96) upstream from the housing of the deposition station and are rotatable about associated vertical axes. A positioner (172) moves one of the banks of alignment members (168) laterally with respect to the direction of conveyance toward the other bank of alignment members to laterally align the glass sheet substrate along the direction of conveyance with the ingress seal assembly (48).
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: May 9, 2000
    Assignee: First Solar, LLC
    Inventors: Alan J. McMaster, Harold A. McMaster
  • Patent number: 6037241
    Abstract: Apparatus (12, 12a) and a method for depositing a semiconductor material on a glass sheet substrate (G) utilizes a distributor (22) including a heated permeable member (24) through which a carrier gas and a semiconductor material are passed to provide a vapor that is deposited as a semiconductor layer on the conveyed glass sheet substrate. The permeable member (24) is tubular and has an electrical voltage applied along its length to provide the heating, and the carrier gas and the semiconductor as a powder are introduced into the tubular permeable member for flow outwardly therefrom as the vapor. A shroud (34) extending around the tubular permeable member (24) has an opening (36) through which the vapor flows for the semiconductor layer deposition.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: March 14, 2000
    Assignee: First Solar, LLC
    Inventors: Ricky C. Powell, Gary L. Dorer, Nicholas A. Reiter, Harold A. McMaster, Steven M. Cox, Terence D. Kahle
  • Patent number: 5948132
    Abstract: A glass sheet strip annealing method utilizes a housing (18) along which a conveyor (26) including a gas support (28) supports a glass sheet strip G by pressurized gas for movement between entry and exit ends (22,24) of the housing before a conveyor drive (32) engages the strip after the surfaces thereof are cooled below the strain point. Best results are achieved when the glass sheet strip is supported only by the gas support (28) until its surfaces are placed in compression. Lower and upper manifolds (34,36) respectively support and convey the glass sheet strip within the housing (18) preferably by a recirculating gas flow supplied by gas burner (76) and associated gas jet pumps (78).
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: September 7, 1999
    Assignee: Glasstech, Inc.
    Inventors: Robert E. Maltby, Jr., Harold A. McMaster, Philip J. Breno, James W. Buckingham, Michael J. Vild
  • Patent number: 5945163
    Abstract: Apparatus (12, 12a) and a method for depositing a material on a substrate (G) utilizes a distributor (22) including a heated permeable member (24) through which a carrier gas and a material are passed to provide a vapor that is deposited on a conveyed substrate. The permeable member (24) is tubular and has an electrical voltage applied along its length to provide the heating, and the carrier gas and the material as a powder are introduced into the tubular permeable member for flow outwardly therefrom as the vapor. A shroud (34) extending around the tubular permeable member (24) has an opening (36) through which the vapor flows for the deposition. In one embodiment of apparatus (12), the vapor is deposited on an upwardly facing surface (56) of the substrate, while another embodiment of the apparatus (12a) deposits the vapor on a downwardly facing surface (54) of the substrate.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: August 31, 1999
    Assignee: First Solar, LLC
    Inventors: Ricky C. Powell, Gary L. Dorer, Nicholas A. Reiter, Harold A. McMaster, Steven M. Cox, Terence D. Kahle
  • Patent number: 5772715
    Abstract: A processing system (20,20') for processing sheet glass G includes a housing (22) and at least one slit seal (38i,38i',38e,38e') constructed to permit continuous passage of sheet glass in an efficient manner without fluttering. The slit seal functions as both an ingress slit seal (38i,38i') and as an egress slit seal (38e,38e'). Each slit seal has side seals (100, 102, 112, 114) and preferably has three stages of vacuum drawn by an associated first, second and third vacuum pumps (80,82,84). The sealing method for use in processing sheet glass has particular utility in connection with depositing semiconductor materials for photovoltaics and can be performed on either discrete glass sheets (28) or a continuous glass ribbon (30).
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: June 30, 1998
    Assignee: Solar Cells, Inc.
    Inventors: Harold A. McMaster, James B. Foote, Alan J. McMaster
  • Patent number: 5700306
    Abstract: A glass sheet strip annealing lehr (16) is disclosed as including a housing (18) along which a conveyor (26) including a gas support (28) supports a glass sheet strip G by pressurized gas for movement between entry and exit ends (22,24) of the housing before a conveyor drive (32) engages the strip after the surfaces thereof are cooled below the strain point. Best results are achieved when the glass sheet strip is supported only by the gas support (28) until its surfaces are placed in compression. Lower and upper manifolds (34,36) respectively support and convey the glass sheet strip within the housing (18) preferably by a recirculating gas flow supplied by gas burner (76) and associated gas jet pumps (78).
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: December 23, 1997
    Assignee: Glasstech, Inc.
    Inventors: Robert E. Maltby, Jr., Harold A. McMaster, Philip J. Breno, James W. Buckingham, Michael J. Vild
  • Patent number: 5209767
    Abstract: A glass sheet strip annealing lehr (16) is disclosed as including a housing (18) along which a conveyor (26) including a gas support (28) supports a glass sheet strip G by pressurized gas for movement between entry and exit ends (22,24) of the housing before a conveyor drive (32) engages the strip after the surfaces thereof are cooled below the strain point. Best results are achieved when the glass sheet strip is supported only by the gas support (28) until its surfaces are placed in compression. Lower and upper manifolds (34,36) respectively support and convey the glass sheet strip within the housing (18) preferably by a recirculating gas flow supplied by gas burner (76) and associated gas jet pumps (78).
    Type: Grant
    Filed: March 19, 1991
    Date of Patent: May 11, 1993
    Assignee: Glasstech, Inc.
    Inventors: Robert E. Maltby, Jr., Harold A. McMaster, Philip J. Breno, James W. Buckingham
  • Patent number: 5125608
    Abstract: Provided is a support assembly for mounting an array of photovoltaic panels to a support surface such as the ground. According to the invention, there is provided a plurality of front and rear support posts, each post having an anchor portion to be driven into the support surface and a leg portion which is nested therein and longitudinally adjustable to raise or lower corresponding front and rear horizontal supports. Photovoltaic panels are mounted lengthwise across the horizontal supports in a predetermined position to minimize the stress thereon caused by wind load. The horizontal supports further comprise wiring raceways to support wiring harnesses originating from the photovoltaic panels and terminating at the end of each row of photovoltaic panels in the array.
    Type: Grant
    Filed: January 30, 1991
    Date of Patent: June 30, 1992
    Assignee: 700 Solar Club, Inc.
    Inventors: Harold A. McMaster, Robert D. Nicholson, Steven A. F. Kaake
  • Patent number: 5110338
    Abstract: An apparatus (10) is disclosed for treating a glass sheet (22) including a substantially enclosed chamber (14) containing a chamber atmosphere (24) in which the glass sheet (22) may be treated. Apparatus (10) also includes gas turbine engine (12) which generates heated pressurized exhaust gases which are provided to chamber (14) to treat glass sheet (22). In one embodiment, conveyor (26) is used to support glass sheet (22) in the chamber atmosphere (24). Air bed plate (72) is used to support the glass in an alternate apparatus embodiment (68).
    Type: Grant
    Filed: April 17, 1991
    Date of Patent: May 5, 1992
    Assignee: Glasstech, Inc.
    Inventor: Harold A. McMaster
  • Patent number: 5092916
    Abstract: A glass sheet bending apparatus (10) for bending glass sheets about a thermally stable reference is disclosed as including a mold shuttle (20) having a receptical member (22) providing a thermally stable reference point or center with respect to a glass sheet heating furnace (14) and an upper mold support including pin (62) cooperable with the first receptical member (22) so that a glass sheet can be accurately bent between molds (34, 32) mounted on the mold shuttle (20) and upper mold support (26) respectively. An upper mold support actuator (40) includes a second registering member (42) engaging a first registering member (28) of the upper mold support (26) for raising and lowering the upper mold support (26) and disengaging the upper mold support to allow relative movement between the actuator (40) and upper mold support (26) so that the same thereby realign and engage in a newly established registration during subsequent lifting of the upper mold support (26).
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: March 3, 1992
    Assignee: Glasstech, Inc.
    Inventor: Harold A. McMaster
  • Patent number: 5078775
    Abstract: A glass sheet gas support (20) is disclosed as having a set of elongated gas supply openings (26) for supplying pressurized gas to support a glass sheet and as also including a set of elongated gas exhaust openings (28) for exhausting the gas and constructed to including progressively increasing gas flow areas in opposite directions from ends (36) of each exhaust opening to a central portion (38) thereof in order to prevent gas pressure buildup between an upwardly facing surface (24) of the manifold and the supported glass sheet at a central location. In one embodiment, the manifold (22) defines each gas exhaust opening (28) with progressively increasing widths from its ends (36) toward the central portion (38) thereof and is preferably constructed as a cast refractory platen (42) which cooperates with a manifold member (58) that mounts gas jet pumps (60) fed products of combustion from a gas burner (62) to provide recirculating flow of gas to and from the supply exhaust openings.
    Type: Grant
    Filed: March 19, 1991
    Date of Patent: January 7, 1992
    Assignee: Glasstech, Inc.
    Inventors: Robert E. Maltby, Jr., Harold A. McMaster, Philip J. Breno, James W. Buckingham
  • Patent number: 5047077
    Abstract: A glass sheet tempering system (10) disclosed comprises a single station heater and quench that includes a heating source (16) for heating the glass sheet (12) and also an air supply (18) for supplying quenching air to temper the heated glass sheet (12). The heating source (16) and air supply (18) are defined by a pair of spaced and opposed plenums (20,20') that provide heating and quenching of the glass sheet (12) generally in one location without having to transport the glass sheet (12) between separate heating and quenching stations.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: September 10, 1991
    Assignee: Glasstech, Inc.
    Inventors: Harold A. McMaster, Robert G. McMaster
  • Patent number: 5045103
    Abstract: An apparatus for heating and bending quenching glass sheets (10) is disclosed as including a first platen (14) and a second platen (22). Both platens (14,22) are deformable for heating and bending a heated glass sheet (12) therebetween. First heat source (18) is integral with the first platen (14) and provides heat in close proximity to the heated glass sheet (12) during the bending to maintain an optimal glass bending temperature.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: September 3, 1991
    Assignee: Glasstech, Inc.
    Inventors: Harold A. McMaster, Ben M. Balestra
  • Patent number: 5002599
    Abstract: A heated glass sheet topside support device (22,22',22a,22a') is disclosed as including horizontally extending lower and upper plates (38,46) connected by a set of vertically extending passage members embodied by tubes (54) or plate members (54a) to define passages (55,55a,55a'). The support device also includes first and second manifolds (56,58) for supplying pressurized gas and a vacuum through first and second sets of holes (42,42a,42a';44,44a,44a') in the lower plate so as to thereby support a heated glass sheet below the lower plate without any engagement. In one construction, the pressurized gas is supplied through a chamber (48,48a) between the plates through a set of shorter tubes (80,80a) mounted within the first set of holes (42,42a) in the lower plate (38,38a), and the vacuum is drawn from the upper side of the upper plate (46,46a) through the holes (52,52a) therein and through the passages (55,55a) and the second set of holes (44,44a) in the lower plate.
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: March 26, 1991
    Assignee: Glasstech, Inc.
    Inventors: Robert G. McMaster, Harold A. McMaster
  • Patent number: 4957531
    Abstract: An apparatus for heating, bending and quenching glass sheets (10) is disclosed as including a first platen (14) and a second platen (22). Both platens (14,22) are deformable for bending a heated glass sheet (12) therebetween. A first heater (18) is integral with the first platen (14) and provides heat in close proximity to the heated glass sheet (12) during the bending to maintain an optimal glass bending temperature.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: September 18, 1990
    Assignee: Glasstech, Inc.
    Inventors: Harold A. McMaster, Ben M. Balestra
  • Patent number: 4909819
    Abstract: A method for bending glass sheets is disclosed in which a heated glass sheet (12) is introduced between spaced upper and lower bending platens (16,18). Heat source (19), integral with platen (18), is operable for applying heat in close proximity to the glass sheet (12) between the platens (16,18) to maintain an optimal bending temperature and the glass sheet (12) is bent such that a specific geometric orientation of the bend on the glass sheet (12) is controllable and repeatedly reproducible during a production operation.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: March 20, 1990
    Assignee: Glasstech, Inc.
    Inventors: Harold A. McMaster, Norman C. Nitschke, Dexter H. McMaster, Ronald A. McMaster, Thomas E. Feehan