Patents by Inventor David Halstead

David Halstead 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: 20190352585
    Abstract: An improved composition and method of use is provided which is suitable for treating live animal growth facility, meat processing facilities and food processing facilities. The composition comprises 34-99.35 wt % water; 0.1 to 3 wt % hydrophobizing agents; up to 5 wt % antistatic agents; 0.05 to 3 wt % wetting agents; and 0.5 to 55 wt % film forming agent. The composition is applied to surfaces and allowed to dry.
    Type: Application
    Filed: May 15, 2019
    Publication date: November 21, 2019
    Inventors: Kevin Hrebenar, David Halstead, Eric Spell
  • Patent number: 7555995
    Abstract: An information tracking device has a bottom disk, a middle marker element, a top disk, and a locking element. The bottom disk has a top surface and a perimeter with a first plurality of information indicia imprinted on the top surface adjacent the perimeter. The middle marker has a marking element. The top disk includes an upper surface with a second plurality of information indicia imprinted on the upper surface. The locking element releasably locks the bottom disk, the middle marker, and the top disk together such that the middle marker indicates a selected one of the first plurality of information indicia and a selected one of the second plurality of information indicia.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: July 7, 2009
    Inventors: Kenneth T. Stump, David Halstead
  • Patent number: 7032535
    Abstract: A tracking device for tracking the ingestion of a plurality of doses of an ingestible material from a container has a time indicating sheet and a plurality of dose indicators. A plurality of time indicating indicia is imprinted on a top surface of the time indicating sheet, each of the plurality of time indicating indicia being spatially separated from each other on the top surface and being adapted to indicate a time period. The plurality of dose indicators each have printed on an upper surface one of a plurality of dose identifying indicia and a reference mark that indicates a direction of orientation visible on each of the plurality of dose indicators. A layer of adhesive on a lower surface of the plurality of dose indicators allows the plurality of does indicators to be attached to the top surface of the time indicating sheet such that the reference mark visibly indicates a direction of orientation that is associated with one of the plurality of time indicating indicia.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: April 25, 2006
    Inventors: David Halstead, Kenneth T. Stump
  • Patent number: 6792829
    Abstract: A lifting tool has a handle, a lifting tool head, and a means for slidably mounting the lifting tool head on the handle such that the lifting tool head slides with respect to the handle between an extended position and a compressed position. The lifting tool further includes a means for biasing the lifting tool head towards the extended position. Since the lifting tool head can slide against the bias of the means for biasing, the lifting tool can absorb some of the shock if the lifting tool head strikes a hard obstruction, thereby sparing a user from the strain and potentially avoiding an injury that could result from the strain.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: September 21, 2004
    Inventors: Arturo C. Garcia, David Halstead
  • Publication number: 20030131781
    Abstract: A tracking device for tracking the ingestion of a plurality of doses of an ingestible material from a container has a time indicating sheet and a plurality of dose indicators. A plurality of time indicating indicia is imprinted on a top surface of the time indicating sheet, each of the plurality of time indicating indicia being spacially separated from each other on the top surface and being adapted to indicate a time period. The plurality of dose indicators each have printed on an upper surface one of a plurality of dose identifying indicia and a reference mark that indicates a direction of orientation visible on each of the plurality of dose indicators. A layer of adhesive on a lower surface of the plurality of dose indicators allows the plurality of does indicators to be attached to the top surface of the time indicating sheet such that the reference mark visibly indicates a direction of orientation that is associated with one of the plurality of time indicating indicia.
    Type: Application
    Filed: January 15, 2003
    Publication date: July 17, 2003
    Inventors: David Halstead, Kenneth T. Stump
  • Publication number: 20020096166
    Abstract: A saw extension for supporting a hand-held portable rotary saw has a base, a plurality of wheels positioned to support the base above a surface, and an upwardly extending arm extending from the base to a control grip. The hand-held portable rotary saw is removably attached to the base with at least one locking pin positioned through a guide plate of the hand-held portable rotary saw and into at least one locking aperture of the base. The saw extension includes a power control mechanism mounted on the saw extension. The power control mechanism includes a power socket into which a saw power cord of the hand-held portable rotary saw can be plugged, a master power cord for electronically connecting the power socket with an external power source.
    Type: Application
    Filed: February 25, 2002
    Publication date: July 25, 2002
    Inventor: David Halstead
  • Publication number: 20020053261
    Abstract: A lifting tool has a handle, a lifting tool head, and a means for slidably mounting the lifting tool head on the handle such that the lifting tool head slides with respect to the handle between an extended position and a compressed position. The lifting tool further includes a means for biasing the lifting tool head towards the extended position. Since the lifting tool head can slide against the bias of the means for biasing, the lifting tool can absorb some of the shock if the lifting tool head strikes a hard obstruction, thereby sparing a user from the strain and potentially avoiding an injury that could result from the strain.
    Type: Application
    Filed: October 26, 2001
    Publication date: May 9, 2002
    Inventors: Garcia C. Arturo, David Halstead
  • Patent number: 6349712
    Abstract: A saw extension for supporting a hand-held portable rotary saw has a base, a plurality of wheels positioned to support the base above a surface, and an upwardly extending arm extending from the base to a control grip. The hand-held portable rotary saw is removably attached to the base with at least one locking pin positioned through a guide plate of the hand-held portable rotary saw and into at least one locking aperture of the base. The saw extension includes a power control mechanism mounted adjacent the control grip. The power control mechanism includes a power socket into which a saw power cord of the hand-held portable rotary saw can be plugged, a master power cord for electronically connecting the power socket with an external power source, and a trigger switch for operably controlling the flow of power to the hand-held portable rotary saw.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: February 26, 2002
    Inventor: David Halstead
  • Patent number: D512613
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: December 13, 2005
    Inventor: David Halstead
  • Patent number: D463649
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: September 24, 2002
    Inventor: David Halstead
  • Patent number: D465714
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: November 19, 2002
    Inventors: Kenneth T. Stump, David Halstead
  • Patent number: D472777
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: April 8, 2003
    Inventor: David Halstead
  • Patent number: D472778
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: April 8, 2003
    Inventor: David Halstead
  • Patent number: D550053
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: September 4, 2007
    Inventor: David Halstead
  • Patent number: D571178
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: June 17, 2008
    Inventor: David Halstead
  • Patent number: D584118
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: January 6, 2009
    Inventor: David Halstead
  • Patent number: D495569
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: September 7, 2004
    Inventor: David Halstead
  • Patent number: D715612
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: October 21, 2014
    Inventor: David Halstead
  • Patent number: D838569
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: January 22, 2019
    Inventor: David Halstead
  • Patent number: D1034121
    Type: Grant
    Filed: February 24, 2023
    Date of Patent: July 9, 2024
    Inventor: David Halstead