Patents Assigned to Peninsular, Inc.
  • Patent number: 5143361
    Abstract: A power clamp is provided that clamps the workpiece when the piston rod is retracted into the cylinder housing thereby preventing damage to the rod and clamp components that could occur from weld flash and other debris created while operations are performed on the workpiece. Other features are disclosed which increase reliability and enable a variety of different arms to be used with the basic clamp construction.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: September 1, 1992
    Assignee: Peninsular, Inc.
    Inventors: Jeffrey S. McNamara, Kosta Dimefski
  • Patent number: 5046706
    Abstract: A power clamp is provided that clamps the workpiece when the piston rod is retracted into the cylinder housing thereby preventing damage to the rod and clamp components that could occur from weld flash and other debris created while operations are performed on the workpiece. Other features are disclosed which increase reliability and enable a variety of different arms to be used with the basic clamp construction.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: September 10, 1991
    Assignee: Peninsular, Inc.
    Inventors: Jeffrey S. McNamara, Kosta Dimefski
  • Patent number: 4909130
    Abstract: An end cap for a reciprocating piston rod cylinder is designed so that the cylinder can be easily removed from external structures, such as a power clamp, without loosening the tie rods.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: March 20, 1990
    Assignee: Peninsular, Inc.
    Inventor: Richard L. LaBair
  • Patent number: 4827835
    Abstract: An end cap for a reciprocating piston rod cylinder is designed so that the cylinder can be easily removed from external structures, such as a power clamp, without loosening the tie rods.
    Type: Grant
    Filed: May 10, 1988
    Date of Patent: May 9, 1989
    Assignee: Peninsular, Inc.
    Inventor: Richard L. LaBair
  • Patent number: 4726282
    Abstract: A fixture cylinder is provided that permits the use of integrally mounted proximity switches with the same fixed probe lengths on both end caps without requiring the use of spacers. The cylinder includes a body in which a piston assembly is slideably mounted about a longitudinal piston axis in a bore in the body. The piston assembly has a piston head, piston rod and a pair of hubs of equal diameter on opposite sides of the piston head. First and second end caps are provided on opposite ends of the body. Each end cap has a plurality of outer edges and a generally flat mounting surface is provided on one edge thereof for receiving a proximity switch. An aperture perpendicularly extends through each end cap and communicates with the bore in the body of the piston assembly. Two substantially identical proximity switches having generally flat mounting surfaces and the same fixed probe lengths are employed.
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: February 23, 1988
    Assignee: Peninsular, Inc.
    Inventor: Richard L. LaBair
  • Patent number: D295753
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: May 17, 1988
    Assignee: Peninsular, Inc.
    Inventor: Richard L. LaBair