Patents by Inventor Paul Straub

Paul Straub 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).

  • Loading apparatus for a conveying pipe
    Patent number: 5286155
    Abstract: A loading apparatus is suggested in which the bulk material is slowed down and where it accumulates before flowing out. When the amount of the bulk material inside the loading apparatus exceeds a certain weight, the loading apparatus will open and allow the bulk material to flow out in downward direction. The opening of the loading apparatus is caused merely by the influence of the weight, with any influence exerted by kinetic energy being excluded.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: February 15, 1994
    Assignee: Buhler AG
    Inventor: Paul Straub
  • Flight conveyor
    Patent number: 4756404
    Abstract: A chain for a trough conveyor includes individual chain links connected with each other by hinge bolts. Removable flight attachment members, which may be flat or curved, connected with each other by at least one cross piece are provided on both sides of the chain links. Two bearing blocks are provided, each with a bore for receiving the hinge bolt. The cross piece rests on the trough by way of a rest surface. At least one support surface disposed in relation to the cross piece in the direction of the chain serves for preventing the tipping of the flight attachment arms when under the action of operating forces. An alternative embodiment includes a dual U-shaped frame about a frame of bearing blocks and cross pieces.
    Type: Grant
    Filed: August 27, 1985
    Date of Patent: July 12, 1988
    Assignee: Gebrueder Buehler AB
    Inventors: Wilhelm Maag, Paul Straub
  • Chain for a flight conveyor
    Patent number: 4573568
    Abstract: A chain for a trough conveyor having individual chain links (2, 3) connected with each other by hinge bolts (1). Flight attachment members (5, 5a) connected with each other by at least one cross piece (10, 10a) are provided on both sides of said chain links (2, 3). Two bearing blocks (7, 7a) are provided, each with a bore (8) for receiving the hinge bolt (1). The cross piece (10, 10a) rests on the trough by way of a rest surface (9, 9a). At least one support surface (12) disposed in relation to the cross piece (10, 10a) in the direction of the chain serves for preventing the tipping of the flight attachment arms when under the action of operating forces (11).
    Type: Grant
    Filed: June 22, 1983
    Date of Patent: March 4, 1986
    Assignee: Gebruder Buhler AG
    Inventors: Wilhelm Maag, Paul Straub
  • Drag chain conveyor
    Patent number: 4201287
    Abstract: The invention concerns a drag chain conveyor with bulk material discharge openings that can be closed in a gas-tight fashion, with a slide plate, along with a slide box that is closed to the outside, and an actuation mechanism for opening and closing the slide plate, preferably via sidewardly arranged guides, and with a seal between the slide plate and the discharge opening.
    Type: Grant
    Filed: April 21, 1978
    Date of Patent: May 6, 1980
    Assignee: Gebrueder Buehler AG
    Inventors: Paul Straub, Heinrich Jost