Patents by Inventor Daniel S. Cvacho

Daniel S. Cvacho 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: 4557167
    Abstract: An apparatus for trimming a scrap ring from a cylindrical container body and its method of operation. A cylindrical container body, closed at one end and provided with a flange member which extends substantially at right angles to the body at the opposite open end, has a scrap ring trimmed from the flange member. The container body is fed into one of a series of hemispherical pockets of a rotary turret and is then moved laterally thereto with the aid of a vacuum holder that engages the closed end. The open end of a container is presented to a main disk cutter that rotates about its axis continuously and which travels in alignment with one of the hemispherical pockets. A frusto-conical ram is mounted on the main disk cutter and is inserted into the open end of the container to insure its roundness. An auxiliary disk cutter, whose axis is substantially at right angles to the main disk cutter, is mounted on a reciprocable bar member along with a stripper plate.
    Type: Grant
    Filed: August 3, 1984
    Date of Patent: December 10, 1985
    Inventor: Daniel S. Cvacho
  • Patent number: 4513595
    Abstract: Methods of necking-in and flanging tubular can bodies having body walls of constant thickness. A pilot die initially inserted into the tubular can body reverses its direction during the necking-in operation with respect to the motion of a ring die member that contacts the exterior surface of the tubular can body member. This concurrent reverse movement of the two forming dies eliminates wrinkles in the necked-in region and produces a container body with increased columnar strength. Repetitive use of the method produces containers with two or three necked-in portions. A method is also disclosed for relubricating the necked-in area of the tubular can body between the successive necking stations.
    Type: Grant
    Filed: December 9, 1983
    Date of Patent: April 30, 1985
    Inventor: Daniel S. Cvacho
  • Patent number: 4446714
    Abstract: Methods of necking-in and flanging tubular can bodies having body walls of constant thickness. A pilot die initially inserted into the tubular can body reverses its direction during the necking-in operation with respect to the motion of a ring die member that contacts the exterior surface of the tubular can body member. This concurrent reverse movement of the two forming dies eliminates wrinkles in the necked-in region and produces a container body with increased columnar strength. Repetitive use of the method produces containers with two or three necked-in portions. A method is also disclosed for relubricating the necked-in area of the tubular can body between the successive necking stations.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: May 8, 1984
    Inventor: Daniel S. Cvacho
  • Patent number: 4301940
    Abstract: An easy open can end construction and method of making it. The pull tab and tear strip remain fully locked onto the can end, and the opening strip does not dip into the beverage. Bead members positioned externally of the tear strip not only preserve a desired orientation of the pull tab with respect to the tear strip but also serve as a guard against the user's face or tongue contacting the raw edge left after lifting the tear strip. The tear strip itself is provided with one or more protective pads to protect the user's face. A sanitary cover member overlies the tear strip and is rolled up with the pull tab and tear strip becoming interlocked therewith. A method of making the score line pattern is included so that tearing occurs along a single side of the bottom of the score line pattern to avoid a zigzag tear pattern which is dangerous to the user's tongue or lips.
    Type: Grant
    Filed: July 25, 1980
    Date of Patent: November 24, 1981
    Inventor: Daniel S. Cvacho
  • Patent number: 4211050
    Abstract: A process for sealing underground walls so as to prevent water from seeping through the walls. A hollow pipe is inserted at a first position and a sealant material is injected through the pipe to effect a seal between a footing and the bottom of the wall. The hollow pipe is withdrawn vertically and progressively while injecting additional sealant material. Thereafter, the hollow pipe is indexed laterally and the wall sealed as before from the footing to grade level and this procedure is repeated until the entire underground wall is sealed externally.In a modified form of the invention, the hollow tube is withdrawn and then the sealant is applied through the opening created by the insertion and withdrawal of the hollow tube.
    Type: Grant
    Filed: October 24, 1978
    Date of Patent: July 8, 1980
    Inventor: Daniel S. Cvacho
  • Patent number: 4181050
    Abstract: A can end trimmer has a main rotary support shaft with a radial turret plate. A plurality of self-contained cutter unit cartridge assemblies have radial head flanges directly connectable to one side of the turret plate with driven members in each cutter unit cartridge automatically engaging control members mounted on the turret plate for effecting movement of a transversely shiftable cutter knife into engagement with an axially fixed cutter knife for effecting rotation of both knives to trim the end from a can held in a vacuum chuck. A shim between the cutter unit cartridge and the turret plate cants the axes of the knife members with respect to the can by a very small amount normally less than 2.0 degrees to effect a smooth burr-free cut of the can end. Stripper pin means surrounds the can being cut which in turn surrounds the axially fixed knife with a reciprocating stripper plate on the pins being easily removed during replacement of the cutter cartridge unit.
    Type: Grant
    Filed: March 9, 1978
    Date of Patent: January 1, 1980
    Assignee: Belgium Tool & Die Company
    Inventors: Alphonse Stroobants, Daniel S. Cvacho
  • Patent number: 4151927
    Abstract: A drawn and ironed easily hand-held metallic container construction is provided and has a central longitudinal axis, a sidewall, and a high-performance bottom wall. The bottom wall has a first substantially frustoconical portion adjoining the sidewall and extending downwardly and toward the longitudinal axis, a second frustoconical portion interconnected to the first frustoconical portion and extending upwardly therefrom toward the longitudinal axis. The bottom wall also has a substantially semi-torroidal inwardly convex bead adjoining the second frustoconical portion and a dished portion adjoining the semi-torroidal bead with the dished portion having a flat central part.
    Type: Grant
    Filed: February 6, 1976
    Date of Patent: May 1, 1979
    Assignee: Reynolds Metals Company
    Inventors: Daniel S. Cvacho, Edwin R. Haufler, Joseph W. Wallace, James M. Woolard
  • Patent number: 4134354
    Abstract: A drawn and ironed easily hand-held metallic container construction is provided and has a central longitudinal axis, a sidewall, and a high-performance bottom wall. The bottom wall has a first substantially frustoconical portion adjoining the sidewall and extending downwardly and toward the longitudinal axis, a second frustoconical portion interconnected to the first frustoconical portion and extending upwardly therefrom toward the longitudinal axis. The bottom wall also has a substantially semi-torroidal inwardly convex bead adjoining the second frustoconical portion and a dished portion adjoining the semi-torroidal bead with the dished portion having a flat central part.
    Type: Grant
    Filed: August 4, 1977
    Date of Patent: January 16, 1979
    Assignee: Reynolds Metals Company
    Inventors: Daniel S. Cvacho, Edwin R. Haufler, Joseph W. Wallace, James M. Woolard
  • Patent number: 4113454
    Abstract: A method of and apparatus for collecting overspray materials from an article coating station wherein a velocity differential in the air stream of the duct system employed selectively transports and effects removal of solids from the overspray materials. A secondary filter removes fine mist and powdered coatings from the overspray. One section of the duct system is preferably made from disposable materials and a removable liner is preferably used in a collecting receptacle to facilitate clean up operations after the coating is completed.
    Type: Grant
    Filed: September 28, 1976
    Date of Patent: September 12, 1978
    Assignee: Belgium Tool & Die Co.
    Inventor: Daniel S. Cvacho
  • Patent number: RE30746
    Abstract: A can end trimmer has a main rotary support shaft with a radial turret plate. A plurality of self-contained cutter unit cartridge assemblies have radial head flanges directly connectable to one side of the turret plate with driven members in each cutter unit cartridge automatically engaging control members mounted on the turret plate for effecting movement of a transversely shiftable cutter knife into engagement with an axially fixed cutter knife for effecting rotation of both knives to trim the end from a can held in a vacuum chuck. A shim between the cutter unit cartridge and the turret plate cants the axes of the knife members with respect to the can by a very small amount normally less than 2.0 degrees to effect a smooth burr-free cut of the can end. Stripper pin means surrounds the can being cut which in turn surrounds the axially fixed knife with a reciprocating stripper plate on the pins being easily removed during replacement of the cutter cartridge unit.
    Type: Grant
    Filed: May 14, 1980
    Date of Patent: September 22, 1981
    Assignee: Belgium Tool & Die Company
    Inventors: Alphonse Stroobants, Daniel S. Cvacho