Patents by Inventor Richard Engel

Richard Engel 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).

  • Carbon black useful for pigment for black lacquers
    Patent number: 4366138
    Abstract: An oxidized carbon black (gas black) is prepared within the MCC (medium color channel black) area showing primary particle sizes of an average diameter of 16 to 18 nm and a content of volatiles of at least 15% which, as secondary characteristics, has a specific surface area (BET) of 300 to 420 m.sup.2 /g, an oil absorption (stiff paste) conducted on carbon black powder of 430 to 560 g/100 g, an oil absorption (stiff paste) conducted on carbon black beads of 370 to 450 g/100 g, a pH value of 2 to 5, a nigrometer index of 68 to 72 and a maximum content of volatiles of 25%. The carbon black is used as a pigment in high jet black lacquers.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: December 28, 1982
    Assignee: Deutsche Gold- und Silberscheideanstalt Vormals Roessler
    Inventors: Edith Eisenmenger, Richard Engel, Gerhard Kuhner, Reinhold Reck, Hans Schaefer, Manfred Voll
  • Animal carrying and skinning device
    Patent number: 4317257
    Abstract: A device for attachment to the skin of a meat animal to be pulled by a power device and strip the skin from the animal carcass. In addition the device can be used for carrying or dragging the animal and for hanging the carcass after skinning.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: March 2, 1982
    Inventor: A. Richard Engel
  • Composite tool structure
    Patent number: 4096896
    Abstract: The invention relates to a composite tool structure in which an interconnection is effected between a tool receiving device and a tool member by providing mating parts with conforming polygonal shapes and a deformable elastomeric ring to obtain an optimum torque transfer between the tool receiving device and the tool member.
    Type: Grant
    Filed: April 29, 1977
    Date of Patent: June 27, 1978
    Assignee: Upson Tools, Inc.
    Inventor: Paul Richard Engel
  • Process for production of deep colored small particle size gas black with low content of extractable matter
    Patent number: 3978019
    Abstract: Deeply colored carbon black having a low content of extractable matter and a primary particle size of about 8-25 nanometers is made by the gas black process using as the carrier gas for the vapors of the carbon black forming oil a hydrogen rich mixture containing over about 50 volume % hydrogen and then collecting the separated carbon black deposited on a cooling roll.
    Type: Grant
    Filed: January 28, 1975
    Date of Patent: August 31, 1976
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Alfred Oelmann, Claus Richard Engel, Lothar Rothbuhr