Patents by Inventor Robert E. Benjamin

Robert E. Benjamin 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: 6357282
    Abstract: A portable and manually operated lightweight tennis ball tester with a housing for receiving at least one tennis ball to be tested; a pair of bars disposed in the housing in a substantially parallel relationship, each of the pair of bars being disposed in opposite sides of the at least one tennis ball; force applying system coupled to one of the pair of bars and extending out of one end of the housing to enable applying a force to the at least one tennis ball; and gauge device coupled to the other of the pair of bars to provide an indication of whether the at least one tennis ball meets standard of play established by the United States Tennis Association.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: March 19, 2002
    Inventor: Robert E. Benjamin
  • Patent number: 4454103
    Abstract: A high acid monocalcium phosphate can be prepared by partially neutralizing phosphoric acid with lime. A substantially non-caking product can be made by hydrating the high acid product dried to a L.O.I. of between about 16% to less than 18.5% with water to an L.O.I. of from 18.5% to about 23% and drying to a free water content of less than 1%. The product is useful in effervescent dry beverage mixes and pharmaceuticals.
    Type: Grant
    Filed: July 20, 1983
    Date of Patent: June 12, 1984
    Assignee: Stauffer Chemical Company
    Inventors: Robert E. Benjamin, Thomas E. Edging
  • Patent number: 4335154
    Abstract: The method of preparing a baked product which is leavened with the aid of a leavening acid. The leavening acid being prepared by adding calcium sulfate to an alkali metal aluminum phosphate slurry prior to drying same.
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: June 15, 1982
    Assignee: Stauffer Chemical Company
    Inventors: Robert E. Benjamin, Thomas E. Edging
  • Patent number: 4260591
    Abstract: The addition of calcium sulfate to an alkali metal aluminum phosphate slurry prior to drying provides an improved process which results in a cleaner reactor, easier drying and granulation, increased production rates, a decreased mill heat requirement and a product having an increased density which is less dusty allowing for easier handling, and substantially non-hygroscopic which avoids caking and blinding of classifier screens.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: April 7, 1981
    Assignee: Stauffer Chemical Company
    Inventors: Robert E. Benjamin, Thomas E. Edging
  • Patent number: 4196226
    Abstract: Alkali metal aluminum phosphate granules having a calcium rich outer surface are provided which are characterized by improved flow and dusting properties as well as lower hygroscopicity without a change in leavening acid performance. The product can be used as a leavening acid in moist doughs, and liquid batters, such as pancake batters and other premixed liquid batter. Longer storage life for liquid or dry products is possible.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: April 1, 1980
    Assignee: Stauffer Chemical Company
    Inventors: Robert E. Benjamin, Thomas E. Edging
  • Patent number: 4054678
    Abstract: A potassium modified 1:3:8 sodium aluminum phosphate having improved flow characteristics and dust properties particularly suited for refrigerated baking applications.
    Type: Grant
    Filed: March 30, 1976
    Date of Patent: October 18, 1977
    Assignee: Stauffer Chemical Company
    Inventors: Robert E. Benjamin, James C. Anglea, Thomas E. Edging, Jerry D. Griffith, A. J. Patterson, Thelton A. Webster
  • Patent number: 3954939
    Abstract: A method for preparing a hydrated monocalcium phosphate, with reduced caking tendencies and quick carbon dioxide release, from a monocalcium phosphate composition having a loss on ignition between about 14 and less than 17% by admixing water with the monocalcium phosphate and permitting the water and monocalcium phosphate to remain in contact for a sufficient length of time to form a hydrated monocalcium phosphate composition having a loss on ignition between 17 and 21.5%. The product is dried to a free moisture content of less than about 1% if the free moisture content is above this level.
    Type: Grant
    Filed: May 21, 1974
    Date of Patent: May 4, 1976
    Assignee: Stauffer Chemical Company
    Inventors: Thomas E. Edging, Robert E. Benjamin, Wayne J. Balfanz