Patents by Inventor Robert G. Welch

Robert G. Welch 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: 7529579
    Abstract: The present invention is a method and apparatus for non-invasive, real-time monitoring of the autonomic nervous systems. The present invention allows for monitoring of the autonomic nervous system using spectral analysis of both heart rate and respiratory signals. A preferred embodiment uses short-time Fourier transform (STFT) with a novel modified Bartlett windowing scheme in real-time so that the dynamic interactions between the sympathetic and parasympathetic divisions of the autonomic nervous system can be independently monitored. In addition, a preferred embodiment of the present invention uses the same techniques to monitor other biological or physiological data, including continuous blood pressure.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: May 5, 2009
    Assignee: Ansar, Inc.
    Inventors: Joseph Colombo, Robert G. Welch, Benhur Aysin
  • Patent number: 5574005
    Abstract: A process for preparing detergent agglomerates for a detergent composition is provided. The process comprises the steps of: (a) providing a non-linear viscoelastic surfactant paste including, by weight of the surfactant paste, from about 70% to 95% of a detersive surfactant and from about 5% to about 30% of water; (b) regulating the amount of sodium carbonate in the surfactant paste such that the surfactant paste has a Maximum Shear Rate of at least 20 sec.sup.-1 so that the surfactant paste is processable; (c) charging the surfactant paste into a high speed mixer/densifier; (d) inputting from about 1% to about 70% by weight of a detergency builder into the high speed mixer/densifier; and (e) agglomerating the surfactant paste and the builder by treating the surfactant paste and the builder initially in the high speed mixer/densifier and subsequently in a moderate speed mixer/densifier so as to form detergent agglomerates.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: November 12, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Robert G. Welch, David N. Githuku, Lester J. Hollihan, Charles A. Jackson
  • Patent number: 5496487
    Abstract: The present invention provides a process which produces high density detergent compositions especially suitable for commercialization as a compact detergent product. The process can be easily retrofitted into existing spray drying detergent-making production plants in that it utilizes existing equipment so as to economize the transition from "tower" based to "non-tower" based detergent manufacturing plants. The process comprises the steps of: (a) agglomerating starting detergent ingredients in a mixer/densifier such that detergent agglomerates having a density of at least 650 g/l are formed; (b) conditioning the agglomerates in a spray-drying tower so as to enhance the free flowability of the detergent agglomerates: and (c) admixing adjunct detergent ingredients in the detergent agglomerates, thereby producing the high density granular detergent composition.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: March 5, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Scott W. Capeci, David R. Nassano, Robert G. Welch
  • Patent number: 5259994
    Abstract: A detergent additive for inclusion in a particulate, free-flowing laundry detergent composition comprising polyvinyl pyrrolidone, finely divided powder, hydrating salt, and binding agent is presented. A process for making a particulate, free-flowing laundry detergent composition is also presented.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: November 9, 1993
    Assignee: The Procter & Gamble Company
    Inventors: Robert G. Welch, Laurie A. K. Bebout
  • Patent number: H1604
    Abstract: A process for preparing high density detergent agglomerates having a density of at least 650 g/l is provided. The process comprises the step of continuously mixing detergent granules having a density of less than about 450 g/l in a moderate speed mixer/densifier wherein the granules are pulverized and densified to produce agglomerates having a density of at least 650 g/l . The mean residence time of the granules in the moderate speed mixer/densifier is at least about 12 minutes, and preferably from 12 to 15 minutes. The process further includes the step of either spraying a binder or adding a coating agent in the mixer/densifier to facilitate agglomeration of the granules. Thereafter, the agglomerates are dried to obtain the high density granular detergent agglomerates which are ready for packaging as a low dosage detergent.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: November 5, 1996
    Inventors: Robert G. Welch, William T. Campbell