Patents by Inventor Theodore Gottlieb

Theodore Gottlieb 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).

  • Fluid powered indexing apparatus
    Patent number: 5255591
    Abstract: An indexing apparatus (10) having a pair of concentric cylinders (12, 14) with the outer concentric cylinder (12) being fixed against longitudinal movement and the inner cylinder (14) mounted for reciprocal movement relative to the fixed outer cylinder (12). A single ram piston (16) is mounted within the inner cylinder (14) and has a piston rod (18) connected to a member (29) for positioning at four predetermined positions. A shock absorber (24) is carried by the outer fixed cylinder (12) and engages stop plates or abutments (20, 28) carried by the inner cylinder (14) for activation of the shock absorber (24). A pair of guide rods (42) prevent rotational movement of inner cylinder (14) relative to the inner cylinder (12) and maintain the shock absorber (24) in axial alignment with the end abutments (20, 28). In one embodiment (FIGS.
    Type: Grant
    Filed: October 3, 1991
    Date of Patent: October 26, 1993
    Assignee: Nathan Gottlieb
    Inventor: Theodore Gottlieb
  • Zone refinement of inertia welded tubulars to impart improved corrosion resistance
    Patent number: 4365136
    Abstract: Corrosion resistance of tubular metal products is enhanced, and particularly to welds formed between metal tubes or pipes and threaded ends.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: December 21, 1982
    Assignee: Hydril Company
    Inventor: Theodore Gottlieb
  • Stainless steel liner in oil well pipe
    Patent number: 4026583
    Abstract: An oil well pipe incorporates a corrosion-resistant, metallic liner which is intimately metallurgically bonded to the pipe bore.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: May 31, 1977
    Assignee: Hydril Company
    Inventor: Theodore Gottlieb