Patents by Inventor Arthur Jacob

Arthur Jacob 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).

  • Patent number: 4113413
    Abstract: A first cylindrical drum member has an inlet portion for receiving a supply of agglomerative materials, such as preheated coal and char. The first drum member has a longitudinal axis and an outlet portion through which the agglomerated product is discharged into the inlet end portion of a second cylindrical drum member. A second drum member is supported for rotation independently of the first drum member in tandem relation therewith and has a longitudinal axis copolanarly aligned with and intersecting the longitudinal axis of the first drum member. A rotary scraper is rotatably positioned within the first drum member in spaced relation to the inner cylindrical wall thereof and has a longitudinal axis spaced from the longitudinal axis of the first drum member. The scraper has a tubular body portion that is rotatably supported adjacent the inlet and outlet portions of the first drum member.
    Type: Grant
    Filed: July 28, 1976
    Date of Patent: September 12, 1978
    Assignee: Dravo Corporation
    Inventors: Arthur Jacob Pietrusza, Harry James Kent
  • Patent number: 4087334
    Abstract: A first cylindrical drum member having an inlet portion for receiving materials to be treated, such as preheated coal and char includes a longitudinal axis and an outlet portion through which the treated materials are discharged into the inlet end portion of a second cylindrical drum member. The second drum member is independently supported for rotation relative to the first drum member and has a longitudinal axis coplanarly aligned with the longitudinal axis of the first drum member such that the drum members are concentrically positioned in tandem relative. A sealing assembly is connected to the first and second drum members for longitudinal movement with the drum members during expansion and contraction of the drum members as they are subjected to different temperatures.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: May 2, 1978
    Assignee: Dravo Corporation
    Inventors: Richard Francis Harig, Arthur Jacob Pietrusza, Albert Harry Riebel, Jr., Harry James Kent
  • Patent number: 4082489
    Abstract: A first cylindrical drum member is rotatably supported on a platform assembly and has a longitudinal axis that is coplanarly aligned with the longitudinal axis of a second cylindrical drum member that is supported independently of the first drum member and positioned in tandem relation thereto. The first drum member has an inlet end portion through which a pair of feed screw conveyors extend to supply agglomerative materials, such as preheated coal and char, to the inner portion of the first drum member. An outlet portion of the first drum member extends into the inlet portion of the second drum member. A platform assembly is provided that includes a pair of vertically extending leg portions through which a pair of shafts transversely extend to permit pivoting the first drum member. The longitudinal axes of the respective drum members intersect at the transverse axis formed by the shafts so that the platform assembly is arranged to pivot about the intersection of the respective longitudinal axes.
    Type: Grant
    Filed: July 28, 1976
    Date of Patent: April 4, 1978
    Assignee: Dravo Corporation
    Inventors: Harry James Kent, Arthur Jacob Pietrusza
  • Patent number: 4057858
    Abstract: A hingeless elbow prosthesis including humeral and ulnar implants, in which the head of the humeral implant has a convex medial condylar formation presenting a smooth curved trochlear groove in the shape of part of a helix and providing a bearing surface for a head of the ulnar implant and in which the ulnar implant presents a condylar head contoured to fit into the trochlear groove, so that as the ulnar implant pivots around the humeral implant, with the condylar head mating with the trochlear groove, the ulnar implant moves along the pivotal axis and the ulnar performs the required valgus in extension and varus in flexion.
    Type: Grant
    Filed: February 13, 1976
    Date of Patent: November 15, 1977
    Inventor: Arthur Jacob Helfet
  • Patent number: 4000304
    Abstract: 2-(2- or 3-Indolyl)indolines, unsubstituted and carbon substituted, condense with N-mono substituted carboxamides or with lactams under the influence of phosphorus oxychloride to produce 1-(N-substituted iminoalkyl)-2-(2- or 3-indolyl)indolines. The 2-(3-indolyl)-1-[2-(1-pyrrolinyl)]indolines rearrange to produce benzodiazepine derivatives. These products have diuretic, antituromobogenic, and antiarrhythmic activity on oral administration.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: December 28, 1976
    Assignee: Mead Johnson & Company
    Inventors: Yao Hua Wu, Arthur Jacob Mueller
  • Patent number: RE29757
    Abstract: A surgical prosthesis or implant for replacing the natural components of a bicondylar joint in a human limb (leg or arm). Thus, a natural knee or elbow joint consists of two pairs of coacting load-bearing condyles. The prosthetic implant has two pairs of coacting male and female condylar components. The male and female components which replace the natural lateral condyles are spherical or spheroidal in shape to simulate a ball and socket joint, while the male and female components which replace the natural medial condyles are constituted by a rib or ridge and a groove. Both the rib and the groove are curved, in a plane normal to the general axis of the limb when straight or extended, to an arc of a circle centered on the center of articulation of the ball and socket, and are also curved in a plane parallel to the limb, the radius of the crest of the rib being less than the radius of the coacting base of the groove.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: September 12, 1978
    Inventor: Arthur Jacob Helfet