Patents by Inventor Erick Davidson

Erick Davidson 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).

  • Publication number: 20030233765
    Abstract: The present invention is a dryer for use with solid-form objects suitable for a continuous process production environment, such as some kinds of produce and vegetables. The apparatus uses a variable-speed accelerator belt to rapidly load objects. The dryer has a domed shaped retaining door to force objects to the perimeter of the perforated spinning drum. In operation the apparatus uses a method to vary the speed of the accelerator belt to accomplish even self-balanced stacking of the objects within the drum. The method also includes varying the drum rotation speed from a slow rotation during loading, permitting self-balancing of the contents of the drum, to a higher drying speed that extracts liquid from the objects.
    Type: Application
    Filed: April 30, 2003
    Publication date: December 25, 2003
    Inventors: Alan Heinzen, Erick A. Davidson
  • Patent number: 6664714
    Abstract: A single piezoelectric is excited at a first frequency to cause two vibration modes in a resonator producing a first elliptical motion in a first direction at a selected contacting portion of the resonator that is placed in frictional engagement with a driven element to move the driven element in a first direction. A second frequency excites the same piezoelectric to cause two vibration modes of the resonator producing a second elliptical motion in a second direction at the selected contacting portion to move the driven element in a second direction. The piezoelectric is preloaded in compression by the resonator. Walls of the resonator are stressed past their yield point to maintain the preload. Specially shaped ends on the piezoelectric help preloading. The piezoelectric can send or receive vibratory signals through the driven element to or from sensors to determine the position of the driven element relative to the piezoelectric element or resonator.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: December 16, 2003
    Assignee: Elliptec Resonant Actuator AG
    Inventors: Bjoern Magnussen, Peter Varadi, Benjamin Hagemann, Erick Davidson
  • Publication number: 20020050765
    Abstract: A single piezoelectric is excited at a first frequency to cause two vibration modes in a resonator producing a first elliptical motion in a first direction at a selected contacting portion of the resonator that is placed in frictional engagement with a driven element to move the driven element in a first direction. A second frequency excites the same piezoelectric to cause two vibration modes of the resonator producing a second elliptical motion in a second direction at the selected contacting portion to move the driven element in a second direction. The piezoelectric is preloaded in compression by the resonator. Walls of the resonator are stressed past their yield point to maintain the preload. Specially shaped ends on the piezoelectric help preloading. The piezoelectric can send or receive vibratory signals through the driven element to or from sensors to determine the position of the driven element relative to the piezoelectric element or resonator.
    Type: Application
    Filed: March 8, 2001
    Publication date: May 2, 2002
    Applicant: Siemens Aktiengessellschaft
    Inventors: Bjoern Magnussen, Peter Varadi, Benjamin Hagemann, Erick Davidson
  • Patent number: 6371014
    Abstract: The system for peeling a fresh commodity includes barbs for piercing the peel in a plurality of spaced-apart locations. A vacuum infuser is used to infuse the pierced commodity with an aqueous solution to loosen the peel. A peeling device supports a fresh commodity in a first position. The commodity is impelled toward a structure having cutting elements for scoring the peel to a predetermined depth. Preferably the scores are made along generally circumferential lines having substantially common endpoints. Peel grippers hold the peel between the scores and release the peeled commodity, such that the peel is retained on the gripping means. A thruster is positioned and adapted to force the commodity along a path to engage the cutting and peel-gripping elements.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: April 16, 2002
    Assignee: Florida Department of Citrus
    Inventors: Mohamed A. Ismail, Shi-Chiang Pao, Mark Thomas, Rudi C. Groppe, Erick A. Davidson
  • Patent number: 5806414
    Abstract: A processing apparatus and method for removing rind from a spheroidal food article, such as a melon is provided. The apparatus includes infeed and outfeed componentry for conveying melons to be processed into and out of the apparatus, providing an apparatus well suited for use in an automated environment. The infeed componentry includes a positioning device for positioning a melon to be processed between revolving mandrels, for achieving a desired orientation of the melon relative to the mandrels. The mandrels retain the melon on its axis and revolve the melon on its equator. Knife members are positioned on either side of the melon and aligned with the equator thereof when the melon is in an initial position. The knife members have detachable blades to accommodate rinds of different thicknesses, so that the blades extend through the rind, without extending into the flesh. Rollers are secured to the knife members to control the cutting depth of the blades and to enhance the ease with which the rind is cut.
    Type: Grant
    Filed: March 22, 1997
    Date of Patent: September 15, 1998
    Assignee: Heinzen Manufacturing, Inc.
    Inventors: Alan Heinzen, Charles Shimmel, Rudi Groppe, Erick A. Davidson