Patents by Inventor Peter B. Alford

Peter B. Alford 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).

  • Splitter grappler
    Patent number: 7526885
    Abstract: A wood splitting grappler is provided which may grab debris, split debris and move the debris to a desired location such as a materials reducing machine for further processing or disposition.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: May 5, 2009
    Assignee: Peterson Pacific Corporation
    Inventors: Arnold N. Peterson, Peter B. Alford
  • Side removal screen system for materials reducing machines
    Patent number: 6910647
    Abstract: The present invention relates to an apparatus and method for removing material sizing and sorting screens from a materials reducing machine. The invention pertains to providing cut outs in the side of the materials reducing machine and positioning the rotor bearing housing to allow access to and the ability to remove screens from the side of the materials reducing machine. Once outside the machine, the screens can be replaced with new screens, rotated, or interchanged with other screens in the materials reducing machine.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: June 28, 2005
    Assignee: Peterson Pacific Corporation
    Inventors: Peter B. Alford, Arnold Neil Peterson
  • Side removal screen system for materials reducing machines
    Publication number: 20030057306
    Abstract: The present invention relates to an apparatus and method for removing material sizing and sorting screens from a materials reducing machine. The invention pertains to providing cut outs in the side of the materials reducing machine and positioning the rotor bearing housing to allow access to and the ability to remove screens from the side of the materials reducing machine. Once outside the machine, the screens can be replaced with new screens, rotated, or interchanged with other screens in the materials reducing machine.
    Type: Application
    Filed: August 21, 2002
    Publication date: March 27, 2003
    Inventors: Peter B. Alford, Arnold Neil Peterson
  • Apparatus for ready conversion of crushing cavity configuration in a cone crusher
    Patent number: 4477031
    Abstract: A cone crusher features a "fine" head and a pair of adapters and associated mantles which allow conversion of the crusher from fine to coarse operation, or vice versa, without the need to change the head itself. Each adapter and its associated mantle can be put on or taken off the head as a unit.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: October 16, 1984
    Assignee: Iowa Manufacturing Company
    Inventor: Peter B. Alford
  • Impact crusher table construction
    Patent number: 4166585
    Abstract: A rotary table for an impact crusher has upper and lower table plates grooved to receive restraining lugs on impeller shoes which are clamped between the plates. The grooves also receive the restraining lugs of segmental wear plates which are held in place, vertically, by having end portions fitting in notches formed conjointly by shoulders on the impeller shoes and the inner faces of the table plates. The latter and the shoes have lip portions to shield the outer edges of the table plates from wear.
    Type: Grant
    Filed: December 9, 1977
    Date of Patent: September 4, 1979
    Assignee: El-Jay, Inc.
    Inventors: Peter B. Alford, David F. Peaks
  • Vibrating screen apparatus having dual function eccentric weights
    Patent number: 4165655
    Abstract: A vibrating screen apparatus having plural unbalanced shaft assemblies to impart vibratory movement to a screen. Each screen assembly has a gear hub to which a pair of eccentric weights are secured in flanking relationship. The shaft assemblies are drivingly connected to one another by an arrangement including an annular gear mounted on the gear hub. The annular gear has such a special relationship to the weights and gear hub, that the act of clamping the weights in place on the gear hub simultaneously clamps the annular gear in place.
    Type: Grant
    Filed: August 18, 1977
    Date of Patent: August 28, 1979
    Assignee: El-Jay, Inc.
    Inventor: Peter B. Alford