Patents by Inventor Ronald Keklak

Ronald Keklak 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: 5890294
    Abstract: A locking safety utility knife includes a body and an operating lever that is squeezed to deploy a retractable cutting blade from within the body. The blade can be locked in its retracted position by means of a ratchet-like mechanism including a pawl which is released by manipulating a cam operator. The pawl engages teeth formed on the outside of a door which closes the rear of a compartment formed in the operating handle to house spare blades, or a blade cartridge.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: April 6, 1999
    Assignee: P.S.I., Inc.
    Inventors: Ronald Keklak, Michael V. Couture
  • Patent number: 5426855
    Abstract: An improved safety utility knife has a hollow handle and a blade which is normally retracted within the handle, but can be extended by squeezing an operating lever. The lever is connected to the blade holder by a toggle linkage having a rearmost pin secured in a discrete support whose position is adjustable. A thumbscrew threaded into the support enables one to adjust the position of the support from outside the handle, and thus change how far the blade protrudes from the handle when the operating lever is fully depressed.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: June 27, 1995
    Assignee: PSI, Inc.
    Inventors: Ronald Keklak, Michael V. Couture, John C. Whitehouse
  • Patent number: 5303474
    Abstract: An improved safety utility knife has a hollow handle and a blade which is normally retracted within the handle, but can be extended by squeezing an operating lever. The lever is connected to the blade holder by a toggle linkage having a rearmost pin secured in a discrete support whose position is adjustable. A thumbscrew threaded into the support enables one to adjust the position of the support from outside the handle, and thus change how far the blade protrudes from the handle when the operating lever is fully depressed.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: April 19, 1994
    Assignee: PSI, Inc.
    Inventors: Ronald Keklak, Michael V. Couture, John C. Whitehouse
  • Patent number: 4713885
    Abstract: A utility knife utilizing a standard commercial blade as a handle forming a guide for a blade slide and also serving as a housing for the blade in a retracted safe position. The blade slide is advanced and retracted by a toggle linkage connected with an operating lever pivotally attached to the handle and biased by a spring to a position causing automatic retraction of the blade into the housing when the lever is released. When the lever is grasped and pulled toward the handle for advancing the blade to a use position, the toggle linkage assumes a straight line dead center slide and blade locking position.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: December 22, 1987
    Inventors: Ronald Keklak, Michael V. Couture, John C. Whitehouse
  • Patent number: 4680571
    Abstract: An alarm system is disclosed for warning personnel at a loading dock that a trailer being loaded has crept away from the dock. In a preferred embodiment, the alarm comprises a box-like housing that can be bolted onto the dock; a clamp that is magnetically held against the outside of the housing and which can be removed for quick attachment to a nearby trailer; and, a spring-loaded cord that is spool fed from inside the housing and connected to the clamp. After the clamp has been attached to the trailer, the alarm automatically arms itself through the use of a novel timing mechanism and spring-loaded actuating arm inside the housing. If the trailer then creeps, it tugs the cord, which causes the arm to trigger the alarm. The alarm stays on but can be automatically shut off by simply replacing the clamp back onto the housing.
    Type: Grant
    Filed: March 13, 1985
    Date of Patent: July 14, 1987
    Assignee: Dedicated Technologies, Inc.
    Inventors: Ronald Keklak, Michael V. Couture, John C. Whitehouse, Marshall W. Payne
  • Patent number: 4659535
    Abstract: A grid structure (42) is mounted within the upper portion (24) of a tapered canister (24), for receiving a relatively loosely packed rectangular array of rods (22) and rearranging the rods into a relatively tightly packed rectangular array at the lower end of the grid. The grid structure comprises a multiplicity of flat, vertically oriented trapezoidal segments (78, 80) interconnected to form a plurality of vertically overlapping grid layers (74, 76). The layers alternate between a row orientation and a column orientation, and thus form a substantially continuous honeycomb of longitudinal cells (64) for guiding individual rods. The cross-sectional area of each cell decreases from the uppermost layer (74a) to the lowermost layer (74i) such that the rods are funneled by the cells to form the tightly packed array.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: April 21, 1987
    Assignee: Combustion Engineering, Inc.
    Inventors: Michael V. Couture, Ronald Keklak
  • Patent number: 4417612
    Abstract: A pocket key holder constructed essentially from three layers of thin flexible material eliminates bulkiness, expensive hardware and noise caused by continual contact of unrestrained loose keys. Ready identification of multiple keys in separated pockets of the holder by sight or by touch is enabled. Convenience of use and compactness are maximized in a soft yielding structure suitable for carrying in any apparel pocket.
    Type: Grant
    Filed: May 18, 1982
    Date of Patent: November 29, 1983
    Inventors: Michael V. Couture, Ronald Keklak
  • Patent number: 4261300
    Abstract: A nuclear steam generator has a blowdown pump arranged to pump water from the blowdown lines through a filter for return to the steam generator. The piping is arranged so that the same pump may operate to reverse the direction of pumping through the blowdown line, whereby reverse circulation may be established during wet lay up of the steam generator. A blower is arranged to withdraw nitrogen from an upper elevation in the steam generator and injected into the blowdown line in combination with the pumped reverse circulation during wet lay up.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: April 14, 1981
    Assignee: Combustion Engineering, Inc.
    Inventors: Michael T. Cross, Ronald Keklak, Cris A. Worley
  • Patent number: 4008730
    Abstract: A lightweight economical and portable structure for small aircraft includes fixed upright tail and wing tip posts and a lightweight generally horizontal boom extending forwardly from the tail post bisecting a line between the two wing tip posts. Cross arms parallel to the boom are secured to the wing tip posts. A similar cross arm extending at right angles to the boom is attached to the tail post. From the ends of the cross arms and points on the boom, the structure is rigged with rope and strong lightweight fabric is cut, sewn and laced on the rope rigging and is supported thereby in overhead relationship to an aircraft beneath it on the ground. Additional wing booms may be suspended beneath the wing covering fabric sections for added stability.
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: February 22, 1977
    Inventors: Ronald Keklak, Hubert H. Loewenhardt
  • Patent number: D401832
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: December 1, 1998
    Assignee: P.S.I. Inc.
    Inventors: Ronald Keklak, Michael V. Couture