Patents by Inventor Richard F. DeRosa

Richard F. DeRosa 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).

  • Method of forming a seal removal tab on a collapsible tube
    Patent number: 5209795
    Abstract: The present invention is for a method of forming means to remove a seal that has been affixed to a collapsible tube in accordance with the method shown in U.S. Pat. No. 4,938,818. A laminate removal tab is cut integral with the seal when the seal is cut, and then bent out of the way along the tube neck when the seal is welded to the tube mouth. The seal is easily lifted and grasped by the fingers to pull the seal off the mouth.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: May 11, 1993
    Assignee: Teledyne Industries, Inc.
    Inventors: Richard F. DeRosa, Carl B. Schartner
  • Method of forming a seal
    Patent number: 4938818
    Abstract: The present invention is for a method of forming a seal in a prior art collapsible tube assembled in a prior art manner. A laminate seal is cut, positioned and held, and welded to the dispensing orifice of a rigid plastic head after the head is molded, but before it is assembled to the tube wall. The seal is protected during the welding of the wall to the head by the use of a heat sink.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: July 3, 1990
    Assignee: Teledyne Industries, Inc.
    Inventors: Henry S. Dzedzej, Richard F. DeRosa, Carl B. Schartner