Patents by Inventor Allan Spellmeier

Allan Spellmeier 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).

  • Cooking extruder with enhanced steam injection properties
    Patent number: 7987774
    Abstract: An improved extruder (10) is provided which permits successful introduction of very high quantities of injected steam into material being processed, on the order of 6-8% or more by weight steam. The extruder (10) includes an elongated extruder barrel (12) having at least one elongated, axially rotatable, helically flighted extrusion screw (16,18) therein. The barrel (12) is equipped with obliquely oriented steam injection ports (44, 46) along the length thereof, housing steam injectors (48, 50). The barrel (12) includes relatively high free volume steam injection heads (32 and 38, 40) having therein screw sections (78, 82) of relatively long pitch length, together with steam restriction heads (30, 34, and 42) on opposite sides of the injection heads (32, and 38, 40) having therein relatively short pitch length screw sections (76, 80, 84).
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: August 2, 2011
    Assignee: Wenger Manufacturing, Inc.
    Inventors: LaVon Wenger, Galen J. Rokey, Allan Spellmeier
  • COOKING EXTRUDER WITH ENHANCED STEAM INJECTION PROPERTIES
    Publication number: 20080223223
    Abstract: An improved extruder (10) is provided which permits successful introduction of very high quantities of injected steam into material being processed, on the order of 6-8% or more by weight steam. The extruder (10) includes an elongated extruder barrel (12) having at least one elongated, axially rotatable, helically flighted extrusion screw (16,18) therein. The barrel (12) is equipped with obliquely oriented steam injection ports (44, 46) along the length thereof, housing steam injectors (48, 50). The barrel (12) includes relatively high free volume steam injection heads (32 and 38, 40) having therein screw sections (78, 82) of relatively long pitch length, together with steam restriction heads (30, 34, and 42) on opposite sides of the injection heads (32, and 38, 40) having therein relatively short pitch length screw sections (76, 80, 84).
    Type: Application
    Filed: March 16, 2007
    Publication date: September 18, 2008
    Applicant: Wenger Manufacturing, Inc.
    Inventors: LaVon Wenger, Galen J. Rokey, Allan Spellmeier