Patents by Inventor Michael F. Campbell

Michael F. Campbell 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: 5355780
    Abstract: The present invention relates to a grate for a cooking grill. The grill includes a heat source such as an open flame heat source or electric resistance-type heat source. The grate includes a plurality of support members, and a plurality of elongated rails disposed in spaced apart parallel relationship with each other and extending transversely to the support members. The spaces between the rails prevent flames from passing through the spaces. The flames may be produced, e.g., by the heat source and/or a grease fire.
    Type: Grant
    Filed: March 9, 1993
    Date of Patent: October 18, 1994
    Inventor: Michael F. Campbell
  • Patent number: 4265925
    Abstract: A solvent extraction and desolventizing process is disclosed which removes substantially all flavor-bearing substances from a moist vegetable protein concentrate, provides a nitrogen solubility index (NSI) of about 6-15, a Bostwick flow value of less than 10, a water absorbency of the concentrate in the range of 270-350, and a penetrometer reading in the range of 7-30 mm so that said vegetable protein concentrate may be used as a protein-containing ingredient in prepared meats.The process includes extracting defatted vegetable protein flakes with an aqueous alcohol solution to remove soluble carbohydrates and flavors, leaving an extracted product having a moisture and volatiles content of about 50-70% by weight. The alcohol-extracted product which contains about 20-40% by weight water, is thereafter desolventized in a humid gas atmosphere with a relatively low gas temperature of less than about 260.degree. F. (127.degree. C.) for about 1-6 hours.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: May 5, 1981
    Assignee: A. E. Staley Manufacturing Company
    Inventors: Michael F. Campbell, Richard J. Fiala, James D. Wideman, John F. Rasche
  • Patent number: 4234620
    Abstract: Aqueous protein dispersions obtained from vegetable sources are subjected to successive pressure and cavitation cycling (e.g., centrifugal homogenization) at temperatures below the protein heat denaturization and under slightly alkaline pH's (e.g., pH 7.0-8.0) to provide a high NSI product. These high NSI products may be dried to provide a vegetable seed product having functional properties and utility similar to milk proteins. Buffered salt extracts from such spray-dried products reveal a predominant restructuring of the protein constituents into high molecular weight protein aggregates. Low NSI soy concentrates obtained by aqueous alcohol extraction processes are converted into a high NSI product possessing many of the desirable functional attributes of soy isolates plus those of milk proteins.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: November 18, 1980
    Assignee: A. E. Staley Manufacturing Company
    Inventors: Paulette A. Howard, Michael F. Campbell, David T. Zollinger
  • Patent number: 3951947
    Abstract: A thin-thick, hydroxypropylated, crosslinked root-type starch derivative for continuous process pressure cooking, which remains stable over a wide pH range (3-7), and maybe used in both neutral and acid food systems. Suitable base starches include waxy maize, waxy milo, waxy sorghum, and any amylopectin-rich starch which is low in amylose contents.These hydroxypropylated starch derivatives are non-jelling, heat stable, freeze-thaw, and are crossed linked to a level at which their aqueous suspensions are initially low in viscosity and then developed full viscosity upon heating in sealed containers, thereby permitting initial rapid heat penetration necessary for the heat sterilizations of canned foods processed in high temperature-short time sterilization (HTST) food canning processes, in which the complete retorting cycle is less than 20 minutes.
    Type: Grant
    Filed: September 17, 1974
    Date of Patent: April 20, 1976
    Assignee: A. E. Staley Manufacturing Company
    Inventors: Robert V. Schanefelt, James E. Eastman, Michael F. Campbell