With Stopping Upon Completion Of Cut Patents (Class 30/403)
  • Patent number: 7596874
    Abstract: There is provided a mechanism for use in a can opener comprising a body; rotationally mounting to the body about a first axis, a drive wheel for engaging the rim of the can; rotationally mounting to the body about a second axis and drivably rotatable by the drive wheel, a cutter wheel; eccentrically mounting to the cutter wheel, a cutting knife movable on rotation of the cutter wheel to a cutting position in which the cutting knife forms a nip with the drive wheel such that the cutting knife penetrates through the cylindrical wall of the can, and in which an electrical sensor can be used to reverse the position of the cutting wheel back to a start position and in which a mechanical sensor can be used in conjunction with a locking bar to advance the cutting wheel back to a start position.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: October 6, 2009
    Assignee: Daka Research Inc.
    Inventors: Pat Y. Mah, Mark Andrew Sanders
  • Patent number: 7574808
    Abstract: There is provided a mechanism for use in a can opener comprising a body; rotationally mounting to the body about a first axis, a drive wheel for engaging the rim of the can; rotationally mounting to the body about a second axis and drivably rotatable by the drive wheel, a cutter wheel; eccentrically mounting to the cutter wheel, a cutting knife movable on rotation of the cutter wheel to a cutting position in which the cutting knife forms a nip with the drive wheel such that the cutting knife penetrates through the cylindrical wall of the can, and in which an electrical sensor can be used to reverse the position of the cutting wheel back to a start position and in which a mechanical sensor can be used in conjunction with a locking bar to advance the cutting wheel back to a start position.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: August 18, 2009
    Assignee: Daka Research Inc. (Br. Virg. Isl Corp.)
    Inventors: Pat Y. Mah, Mark Andrew Sanders
  • Patent number: 6739061
    Abstract: A can opener that automatically opens a can and then signals when the can has been opened, upon the insertion of a can into the can opener and pressing a start button. The automatic can opener is useful for physically challenged individuals and/or individuals who are sight challenged.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: May 25, 2004
    Inventor: Sherry L. Montel
  • Patent number: 5682681
    Abstract: A fiber drum chime removing system for disassembling fiber or paperboard drums having metal chimes has a stationary cutting assembly and a movable cutting assembly. The stationary cutting assembly cuts the upper edge of the fiber sidewall of the drum to remove the upper drum chime from the drum. Contemporaneously, the movable cutting assembly cuts the lower edge of the fiber sidewall of the drum. A chime cutter mounted to the movable cutting assembly then cuts the lower drum chime to remove from the drum. Air cylinders automatically engage the stationary and movable cutting assemblies, and electric DC motors automatically drive the cutting assemblies. The chime cutter is automatically actuated by an air cylinder. The position of the movable cutting assembly is also adjusted automatically with an air cylinder so that the movable cutting assembly can be located in the proper position for cutting engagement.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: November 4, 1997
    Assignee: Hydro-Thermal Corporation
    Inventors: Bruce A. Cincotta, Charles J. Patrick, Gary C. Zaiser
  • Patent number: 4251917
    Abstract: A portable drum opener tracks around a cover rim of a drum while cutting through an outer lip of the cover rim. It includes a rotatably driven drive wheel for engaging a radially inward facing surface of the cover rim for advancing the opener around the drum. A shaft that is movable toward and away from the outer lip of the cover rim carries a cutter wheel for pressing against and cutting through the outer lip in a region opposite the drive wheel. A pair of guide wheels are mounted for rolling against the outer lip of the cover on opposite sides of the drive wheel to support the opener during cutting, and a spring biased bracket urges the guide rollers against the outer lip of the cover. A lost motion coupling between the movable shaft and the guide roller bracket lets the guide rollers press independently against the drum rim during the cut but retracts the guide rollers away from the cutter rim when the cutter is retracted at the end of a cut.
    Type: Grant
    Filed: February 14, 1979
    Date of Patent: February 24, 1981
    Assignee: Peres Machines Division Honeoye Industries, Inc.
    Inventor: Anthony R. Peres
  • Patent number: 4028805
    Abstract: An electric motor-driven can opener having a push button-operated switch to close the energization circuit for the motor is disclosed. The can-opening mechanism includes a cutter blade and can-turning gear combination, a vertically reciprocatable slide member supporting the cutter blade and a cam follower, and a power gear and box cam combination driven by the motor for vertically displacing the cam follower. In operation, after a can to be opened has been loaded into the cutting mechanism without the lid being penetrated by the cutter blade, the motor is started by depression of the push button to effect rotation of the gear, the switch being held in its "closed" position by a latch even after the button is released. The cam initially forces the cam follower and therewith the slide member downwardly slightly, so that the cutter blade is forced through the lid of the can at the beginning of the cycle and is then held there while the can turns to sever the lid from the body of the can.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: June 14, 1977
    Assignee: F. G. Waide, Inc.
    Inventor: Anthony G. Figlia