Patents by Inventor Otto Stier

Otto Stier 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: 4193347
    Abstract: Caseless cartridges including a bullet, charge, and detonator, have tongue and groove interfitting faces to form a stack, held in a magazine which can be clipped to another magazine.
    Type: Grant
    Filed: February 15, 1978
    Date of Patent: March 18, 1980
    Assignee: Vollmer Werke, Maschinenfabrik GmbH
    Inventors: Otto Stier, Udo Vollmer
  • Patent number: 4074593
    Abstract: A machine for machining the teeth of circular saws includes a rotary table. The table has a plurality of cotters for holding the blades. The table is rotatable to bring each saw successively to a plurality of machining stations. At each station the saw is rotated about its axis in increments corresponding to the spacing of the teeth. After each such incremental rotation a tooth is machined. A feeding mechanism for rotating the saw, and a locking mechanism for holding the saw at each incremental position are mounted on the table at each cotter. A stationary activating mechanism is situated adjacent each machining station to actuate these mechanisms.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: February 21, 1978
    Assignee: Vollmer Werke Maschinenfabrik GmbH
    Inventor: Otto Stier
  • Patent number: 4018109
    Abstract: A feed device for machines which act on saw teeth, to sharpen the teeth, position the teeth, add hard metal plates to the teeth or the like, which accommodate wide pitch distances between saw teeth and variations in pitch distances between the teeth of the saw. The feed device includes a first reciprocal feed pawl which advances the saw a preset distance on each stroke and a second reciprocal feed pawl which additionally advances the saw to accommodate wide pitch distances between saw teeth and variations in saw tooth pitch patterns.
    Type: Grant
    Filed: August 27, 1975
    Date of Patent: April 19, 1977
    Assignee: Vollmer Werke Maschinenfabrik GmbH
    Inventor: Otto Stier
  • Patent number: 4018107
    Abstract: A machine for sharpening saws having alternating precutting teeth and post-cutting teeth of lesser height which reciprocates a grinding wheel to grind first the leading edge of a pre-cutting tooth to a fixed depth, the grinding wheel is then raised to grind the back edge of an adjacent post-cutting tooth and is next lowered to the same depth for grinding the leading edge of the post-cutting tooth and the grinding wheel is finally raised again thereby cutting a lesser amount of the back face of the adjacent pre-cutting tooth. The machine has a first cam actuating mechanism for imparting a fixed length stroke to the grinding wheel and a second cam mechanism coupled to the first mechanism for varying the stroke with adjustments being provided for both mechanisms.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: April 19, 1977
    Assignee: Vollmer Werke Maschinenfabrik GmbH
    Inventor: Otto Stier
  • Patent number: 3960037
    Abstract: Machine for treating saw blades, in particular for sharpening teeth of circular saw blades, comprising a bearing unit for centrally mounting a circular saw blade of any diametrical dimension, a feed device for stepwise turning the saw blade by a tooth-pitch or multiple thereof, and a treating device for sharpening the teeth of a saw blade arranged to work in timed relationship with the device. The feed device and treating device being arranged diametrically opposite from each other with respect to the bearing unit. The feed device and bearing unit being arranged on common guide members for selective displacement in a ratio of 2:1 along a line extending diametrically to the saw blade to be treated to accommodate different size blades.
    Type: Grant
    Filed: March 18, 1975
    Date of Patent: June 1, 1976
    Assignee: Vollmer Werke Maschinenfabrik GmbH
    Inventor: Otto Stier