Patents by Inventor Leo F. Vermaas

Leo F. Vermaas 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: 5397592
    Abstract: It is known to add anti-spattering agents to spreads and other frying fats so as to reduce the spattering tendency. Anti-spattering agents include, nitrogen, salt, calcium chloride or phosphates, and emulsifiers such as egg yolk and lecithin. Oxidised bean oil is known to be effective against primary spattering but ineffective against secondary spattering. An improved anti-spattering agent effective against both primary and secondary spattering, comprises a mixture of a thermally oxidised vegetable oil such as "blown bean oil" and a source of phosphatidyl choline, preferably "Cetinol".
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: March 14, 1995
    Assignee: Van Den Bergh Foods Co., Division of Conopco Inc.
    Inventors: Leo F. Vermaas, Jan Benjamins, Peter Sonneveld
  • Patent number: 5063076
    Abstract: Multifunctional fat-continuous emulsions having a reduced fat content are disclosed. The emulsions comprise a fatty phase, a thickened proteinaceous aqueous phase and an emulsifier system. The emulsifier system comprises mono fatty acid esters of both saturated and unsaturated fatty acids. The emulsions are of use in the manufacture of baked goods as table spreads and as frying products.
    Type: Grant
    Filed: October 2, 1990
    Date of Patent: November 5, 1991
    Assignee: Van den Bergh Foods Co., Division of Conopco, Inc.
    Inventors: Roger M. Finlayson, Harry Scharmann, Leo F. Vermaas
  • Patent number: 4840810
    Abstract: The invention concerns a process for the preparation of an edible plastified fat-containing product wherein a fat-containing composition is passed through a heat-exchanger comprising two closely spaced mutually displaceable surfaces, each having a pattern of cavities which overlap during movement of one surface with respect to the other, between which surfaces the composition passes, at least one of which surfaces is provided with means to control the temperature thereof, wherein more in particular one or both of the surfaces can act as heat exchanging surface. The surface(s) can either be heated or cooled.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: June 20, 1989
    Assignee: Lever Brothers Company
    Inventors: Janos Bodor, Jan van Heteren, Henricus W. Willemse, Leo F. Vermaas
  • Patent number: 4510167
    Abstract: A margarine fat with a low level of triglycerides from fatty acids in the trans-configuration is produced from vegetable oils, and preferably from one type of oil, by a process involving (a) random interesterification of a saturated fat with an unsaturated oil, (b) fractionation of the interesterified mixture to remove high melting components (stearin) and (c) optionally mixing appropriate amounts of the low melting components (olein), interesterified mixture and non-hydrogenated or partly hydrogenated oils.
    Type: Grant
    Filed: November 22, 1983
    Date of Patent: April 9, 1985
    Assignee: Lever Brothers Company
    Inventors: Werner J. Schmidt, Willem Dijkshoorn, Wilhelm Stratmann, Leo F. Vermaas
  • Patent number: 4425371
    Abstract: A margarine fat blend having a good melting behavior under temperature conditions prevailing in the mouth is produced according to a process involving (i) random interesterification of a mixture of hydrogenated and non-hydrogenated oils, (ii) fractionating the interesterified mixture to obtain a specific olein fraction, and (iii) mixing appropriate proportions of the olein with liquid oil.The stearin fraction can be recirculated in the system by substituting it for at least part of the hydrogenated oil in the mixture to be interesterified.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: January 10, 1984
    Assignee: Lever Brothers Company
    Inventors: Wilhelm Stratmann, Leo F. Vermaas, Willem Dijkshoorn
  • Patent number: 4386111
    Abstract: The invention relates to a fat blend comprising 2-35 parts by weight of hardstock, 30-98 parts by weight of oil liquid at room temperature and 0-35 parts by weight of hydrogenated fat having a slip melting point of 25.degree.-45.degree. C. The fat blend can be used for producing margarines, low calorie margarines containing e.g. 35-60% by wt. of fat, and cooking fats.The hardstock is an interesterified hydrogenated blend of (1) triglycerides derived from a fat rich in fatty acid residues having 16-18 carbon atoms, most of which are saturated, and (2) an olein fraction of a fat rich in lauric acid residues. The hydrogenation can be carried out before or after interesterification. The ratio of (1):(2) can be (20-80):(80-20), preferably (40-58):(60-42).
    Type: Grant
    Filed: May 27, 1981
    Date of Patent: May 31, 1983
    Assignee: Lever Brothers Company
    Inventors: Jan Van Heteren, Jacobus N. Pronk, Willem J. Smeenk, Leo F. Vermaas