Patents by Inventor Thomas J. Siwek

Thomas J. Siwek 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: 5071033
    Abstract: A dispenser for edible tablets having a cylindrical case and a spring biased plunger therein for urging a stack of tablets within the case upwardly. Detents formed around the open end of the case hold the tablets in the spring biased arrangement. A closure cap is pivotally mounted on the case and includes a lifting arm that extends into the case to fit underneath the top tablet in the stack to pivot it upwardly and outwardly while preventing movement of the next tablet out of the case until the cap is reclosed and the lifting arm repositioned relative to the next tablet.
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: December 10, 1991
    Assignees: Practical Products, Co., Market, U.S.A.
    Inventor: Thomas J. Siwek
  • Patent number: 4993123
    Abstract: A two part rope lock for hooking over the railing of a boat, having a hanger member with a pair of transversely arranged guide hooks at upper and lower ends. A channel is formed by two outstanding flanges at the back of a leg of a rail-engageable hook between the guide hooks for passage of a rope therethrough. The flanges include inclined slots for the slidable non-pivotal attachment of a cam wedge second member that moves at an inclined angle toward the leg of the hanger member. Both the hanger member and the cam wedge member include serrated surfaces so that when the cam wedge is slid downwardly a rope may be clamped therebetween. The rope lock is adjustable by one hand so that the rope may be adjusted to be gripped at different positions, such as for use with a bumper guard attached to a depending end of the rope for placing the guard at different locations on the hull of a boat as needed.
    Type: Grant
    Filed: June 7, 1990
    Date of Patent: February 19, 1991
    Inventor: Thomas J. Siwek