Patents by Inventor Carl R. Bogardus, Jr.

Carl R. Bogardus, Jr. 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).

  • Cantilevered mandrel assembly
    Patent number: 4462787
    Abstract: A rotatable mandrel for making cylindrical molded articles has a plurality of aligned identical and collapsible cylindrical mandrel sections supported upon a cantilevered shaft, the cylindrical sections having a truss supported relatively thin exterior wall and retractable segment to permit circumferential contraction of the wall, the composite segmental cylindrical segment being supported by a central cantilevered rotatable shaft in turn supported by a rotatable bearing assembly on a vertical support tower, the collapsible contraction of the composite cylindrical mandrel being controlled by internally mounted power units connected to the retractable segment and the other portions of the cylindrical mandrel sections.
    Type: Grant
    Filed: February 1, 1983
    Date of Patent: July 31, 1984
    Inventors: Carl R. Bogardus, Jr., Lawrence C. Thompson
  • Multi-battery power supply for DC motors
    Patent number: 4360766
    Abstract: A multi-battery power supply has a battery adding circuit and a charging circuit for each battery, and a common heat sink bus.
    Type: Grant
    Filed: January 7, 1981
    Date of Patent: November 23, 1982
    Inventor: Carl R. Bogardus, Jr.