Patents by Inventor David L. Armstrong

David L. Armstrong 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: 4074357
    Abstract: An analog control system and a digital system are provided with an integrated interface for the input/output signals used in monitoring and controlling an electric power plant. Plant analog and digital inputs are processed through circuitry which provides input signals compatible for use in both the analog and the digital systems. Analog and digital outputs are similarly processed through circuitry which provides compatible signals. Output signals are directly applied from the analog control to the digital system or vice versa without need for buffering.
    Type: Grant
    Filed: July 15, 1976
    Date of Patent: February 14, 1978
    Assignee: Westinghouse Electric Corporation
    Inventors: Rash B. Gupta, David L. Armstrong
  • Patent number: PP4195
    Abstract: A new and very productive variety of flowering-fruiting peach tree, bearing an abundance of ornamental double flowers of strong reddish pink color in the last weeks of winter in Southern California, followed by a heavy crop of fairly large freestone fruits, which ripen on and after mid-July. The aroma and flavor of the fruit are strong, and the flesh is fine and tender, with melting texture and orange-yellow color. The growth habit of the tree is moderately vigorous, and its chilling requirement is slightly less than "Springtime".
    Type: Grant
    Filed: February 10, 1977
    Date of Patent: January 24, 1978
    Assignee: Armstrong Nurseries, Inc.
    Inventor: David L. Armstrong
  • Patent number: PP4301
    Abstract: A new hybrid tea rose of the tall bush type, tender to half-hardy, raised as an outdoor seedling and useful primarily for garden decoration. One notable characteristic is the uniform medium golden yellow blooms, which are of large size (13 to 14 centimeters) and fragrant, with 25 to 34 petals plus 2 to 4 petaloids. The color lightens as the flower matures. The plant is vigorous and blooms abundantly.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: September 12, 1978
    Assignee: Armstrong Nurseries, Inc.
    Inventor: David L. Armstrong
  • Patent number: PP4865
    Abstract: A peach tree of the freestone class, a moderately vigorous growth habit, bearing fruit which is somewhat larger than average, generally globose in form, and with creamy white flesh, maturing in mid-August in southern California, and characterized by its good eating quality, good keeping quality, and good shipping quality.
    Type: Grant
    Filed: October 10, 1980
    Date of Patent: July 13, 1982
    Assignee: Armstrong Nurseries, Inc.
    Inventor: David L. Armstrong