Patents by Inventor Edward J. Dillenbeck

Edward J. Dillenbeck 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).

  • Safety interlocking blade release mechanism for hand held cutting tools
    Patent number: 6044562
    Abstract: An improved safety knife which has a hollow body and a blade which is normally retracted within the knife, but can be extended by urging the operating lever (26) down and forward. The lever is connected to the blade carriage near the aft end of a leaf bias beam (24). A sear, protruding inward, at the far aft end of said leaf bias beam serves to interlock the blade and carriage in the cutting position. Upon sensing pressure of the cut, blade carriage pivots at the pivot point (22), causing the sear (28) to disengage from interlock.At this point, blade and carriage are free to retract into sheathed position within the body. This retraction takes place at the termination of cut, when cutting drag is diminished and knife accelerates towards user.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: April 4, 2000
    Inventor: Edward J. Dillenbeck