Patents by Inventor Jack U. Dritenbas

Jack U. Dritenbas 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).

  • Systems for producing truss members
    Patent number: 5293801
    Abstract: An adaptable system for precise cutting ends of 2.times.4 type lumber to form chords and webs for wooden roof trusses basically includes (a) a protractor unit formed of a plate member and a guide member, (b) horizontal table means including an upper surface supporting the protractor unit and upon which the lumber is supported in use of the system and (c) a radial arm saw. Stucture details of the protractor unit are disclosed. The system is relatively much less expensive than prior known precision roof truss member cutting devices and its method of use is quickly learned by sawyers.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: March 15, 1994
    Inventor: Jack U. Dritenbas