Patents by Inventor John H. Amstad
John H. Amstad 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).
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Patent number: 6776087Abstract: A food processing machine having a product cleaning drum and an encircling product carrier shell disposed to define an annular product cleaning space therebetween. A waste collecting bell is concentrically mounted about the carrier shell to provide a waste collecting space therebetween and the carrier shell and collecting bell are interconnected. Separate mechanisms drive the cleaning drum and the interconnected carrier shell and collection bell to alter the magnitude of the centrifugal force that moves the products through the cleaning space and controls the amount of surface pressure applied to the products by abrading members carried on the periphery of the cleaning drum. Centrifugal force and the abrading members coact with frictional surfaces provided in the product movement path to move the products through the machine, while centrifugal force moves waste material from the cleaning space into the waste collecting space and out through a waste discharge mechanism.Type: GrantFiled: June 25, 2003Date of Patent: August 17, 2004Assignee: The Amstad Family Revocable TrustInventor: John H. Amstad
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Patent number: 5307738Abstract: A dry food processing machine designed to clean and polish vegetables such as potatoes as well as various fruits. The machine includes inner and outer, concentrically arranged, inverted, frusto-conical rotatable members which are concentrically spaced from one another to provide a product cleaning space therebetween. The conical members are rotatably driven in opposite or synchronous directions at selected speeds. Rotation produces a centrifugal force to the product which constitutes a vertical and horizontal component of force. Abrading devices are provided in the cleaning apace to assist in cleaning. Product is introduced through the inner member into the cleaning space and the provided vertical force will drive the product upwardly through the cleaning space for removal of material for final delivery of product to a collector cowling. Material removed rom the product will be driven horizontally from the cleaning space through the outer conical member for collection.Type: GrantFiled: June 25, 1993Date of Patent: May 3, 1994Inventor: John H. Amstad
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Patent number: 4842883Abstract: An apparatus and method for continuously peeling and removing dirt from produce wherein the apparatus comprises an abrading cage with a plurality of rotating spindles and having an internal chamber with an inwardly facing abrading surface and an axis of rotation. The axis of rotation of the cage is generally horizontally aligned, as opposed to being vertically aligned so as to vary the combined force due to gravity and centrifugal force acting upon produce within the cage. The cage is rotated at sufficient speed to substantially maintain the produce in contact with the abrading surface during revolution thereof yet the combined force acting upon the produce varies throughout the revolution so as to prevent clustering and bridging. A peel and dirt collecting drum diverges from one end to a wide end, is rotated and is positioned radially outward from the cage and has a surface thereon positioned to receive debris flung outwardly from the cage.Type: GrantFiled: January 11, 1988Date of Patent: June 27, 1989Inventor: John H. Amstad
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Patent number: 4258069Abstract: Method for removing material from the surface of fruits and vegetables (produce) and separating the removed material from the resultant mixture utilizes the rotation of an upwardly directed cage formed of elongated rotating spindles having a material removing surface thereon, the cage rotary speed being sufficient, at the interior radius thereof, to maintain the produce in continuous centrifugal force contact against the spindle material removing surface, but generally insufficient to prevent downward movement or migration of the produce within the cage under the force of gravity. Produce to be treated is urged into engagement with the spindles and the rotating cage causes the produce to accelerate substantially to said rotary speed, whereby the produce travels with the cage in contact with the rotating material removing spindle surfaces.Type: GrantFiled: February 12, 1979Date of Patent: March 24, 1981Assignee: Atlas Pacific Engineering CompanyInventor: John H. Amstad
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Patent number: 4230034Abstract: Apparatus and method for removing material from the surface of fruits and vegetables (produce) and separating the removed material from the resultant mixture utilizes the rotation of an upwardly directed cage formed of elongated rotating spindles having a material removing surface thereon, the cage rotary speed being sufficient, at the interior radius thereof, to maintain the produce in continuous centrifugal force contact against the spindle material removing surface, but generally insufficient to prevent downward movement or migration of the produce within the cage under the force of gravity. Produce to be treated is urged into engagement with the spindles and the rotating cage causes the produce to accelerate substantially to said rotary speed, whereby the produce travels with the cage in contact with the rotating material removing spindle surfaces.Type: GrantFiled: February 12, 1979Date of Patent: October 28, 1980Assignee: Atlas Pacific Engineering CompanyInventor: John H. Amstad
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Patent number: 4176594Abstract: An improved live knife assembly construction is provided based on such assemblies as are shown in U.S. Pat. Nos. 3,058,502 (FIG. 8) and 3,277,941. The aforementioned patents are owned by the assignee of this invention and this application.Type: GrantFiled: November 15, 1977Date of Patent: December 4, 1979Assignee: Atlas Pacific Engineering CompanyInventor: John H. Amstad
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Patent number: 4169528Abstract: This invention relates to an apple orienting device suited to orient apples particularly those known as the Red Delicious variety and which are generally relatively long as compared to their diameter. The present orientor includes a pair of eccentrically mounted wheels, and represents an improvement over presently known devices. The orienter uses two eccentrically mounted wheels to aid in orienting the apples.Type: GrantFiled: December 12, 1977Date of Patent: October 2, 1979Assignee: Atlas Pacific Engineering CompanyInventor: John H. Amstad
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Patent number: 4068574Abstract: An apparatus and method for continuously peeling vegetables and fruits in large quantities. The apparatus includes a support structure with a housing rotatably mounted thereon, the housing having a plurality of closely spaced-apart, rotating abrading spindles mounted thereon forming an enclosed cage. Rotation of the cage at a sufficient rate accelerates produce items engaging the spindles into generally circular orbits at a speed which results in the produce items being held against the rotating spindles by centrifugal force. The centrifugal force generated by the rotation of the cage also urges peelings outwardly of the cage between the spindles for discharge. A finger drum is rotatably mounted on said support structure within the cage and has a plurality of flexible fingers thereon adapted to engage produce items as they move from a feed end to a discharge end of the housing. Rotation of the finger drum causes the fingers to urge the produce items into initial engagement with the spindles.Type: GrantFiled: November 26, 1975Date of Patent: January 17, 1978Inventor: John H. Amstad
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Patent number: 4062985Abstract: An apparatus and method for continuously peeling vegetables and fruits in large quantities. The apparatus 1ncludes a support structure with a housing rotatably mounted thereon, the housing having a plurality of closely spaced-apart, rotating abrading spindles mounted thereon forming an enclosed cage. Rotation of the cage at a sufficient rate accelerates produce items engaging the spindles into generally circular orbits at a speed which results in the produce items being held against the rotating spindles by centrifugal force. The centrifugal force generated by the rotation of the cage also urges peelings outwardly of the cage between the spindles for discharge. A finger drum is rotatably mounted on said support structure within the cage and has a plurality of flexible fingers thereon adapted to engage produce items as they move from a feed end to a discharge end of the housing. Rotation of the finger drum causes the fingers to urge the produce items into initial engagement with the spindles.Type: GrantFiled: August 19, 1976Date of Patent: December 13, 1977Assignee: Atlas Pacific Engineering CompanyInventor: John H. Amstad
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Patent number: RE35789Abstract: A dry food processing machine designed to clean and polish vegetables such as potatoes as well as various fruits. The machine includes inner and outer, concentrically arranged, inverted, frusto-conical rotatable members which are concentrically spaced from one another to provide a product cleaning space therebetween. The conical members are rotatably driven in opposite or synchronous directions at selected speeds. Rotation produces a centrifugal force to the product which constitutes a vertical and horizontal component of force. Abrading devices are provided in the cleaning apace to assist in cleaning. Product is introduced through the inner member into the cleaning space and the provided vertical force will drive the product upwardly through the cleaning space for removal of material for final delivery of product to a collector cowling. Material removed rom the product will be driven horizontally from the cleaning space through the outer conical member for collection.Type: GrantFiled: April 24, 1996Date of Patent: May 12, 1998Inventor: John H. Amstad