Patents Represented by Law Firm Pitts, Ruderman & Kesterson
  • Patent number: 4388044
    Abstract: A liquid storage tank for providing a liquid under pressure in such a way that pressurized air will not be absorbed by the liquid is disclosed. According to one embodiment of this invention, the pressurized storage tank of this invention having side walls and an end wall uses a plunger or a plate having a seal which is biased to move within the tank as water or liquid is forced into the tank or withdrawn from the tank. According to this embodiment, springs may be positioned in different arrangements and used to provide the bias that maintains the water or liquid under pressure. Still other embodiments use mass or weight while still others use power actuated means or air pressure for providing the necessary bias. In other embodiments of the invention, the tank may include a seal and/or a collapsable liner to prevent any of the liquid from passing the plunger or piston. The addition of a collapsable liner is especially useful if the liquid to be maintained under pressure is corrosive.
    Type: Grant
    Filed: August 1, 1980
    Date of Patent: June 14, 1983
    Inventor: Paul Wilkinson
  • Patent number: 4386649
    Abstract: A programmable thermostatic control device for controlling the temperature within a preselected zone of an enclosed environment. The device can be readily installed and utilizes an interface unit through which the heating, ventilation and cooling system of a building and/or residence are connected to the device outputs. An operator is guided through the programming of the device by cueing or prompting lights which sequentially indicate the information to be entered on the keypad. The device is processor-based and controls the heating and cooling systems to maintain a preselected temperature range, and to establish a preselected temperature within the controlled zone at a predetermined time. The temperature within the control zone is established and/or maintained with maximum efficiency by controlling the stage and duration of energization of the heating and air conditioning units.
    Type: Grant
    Filed: July 15, 1980
    Date of Patent: June 7, 1983
    Assignee: Nuclear Systems, Inc.
    Inventors: Randal C. Hines, Thomas J. Black
  • Patent number: 4383377
    Abstract: Apparatus for efficiently and inexpensively deodorizing rooms, such as restrooms in commercial establishments, on an as needed basis is disclosed. The apparatus operates in conjunction with a standard hot air hand dryer commonly found in public and commercial washrooms, restrooms, showers, and the like. When the hot air dryer is used in conjunction with this invention, a powerful flow of air is moved past a deodorizer source thereby providing the deodorizing. Thus, the more useage of the hot air dryer, the more room deodorizing is provided. The apparatus includes a cup or housing container which is securely mounted or attached to the intake grill of the hot air hand dryer. The cup or container includes openings or apertures at selected locations such that the free flow of intake air is not inhibited. There is also included, in an unobvious location of the cup, a larger opening or slot suitable for placing a stick or disk of a vaporizable deodorizer in the container.
    Type: Grant
    Filed: November 19, 1980
    Date of Patent: May 17, 1983
    Inventor: Thomas W. Crafton
  • Patent number: 4381298
    Abstract: A male contraceptive composition is described that may be administered orally. This permits adjusting the dose of the constituents to provide for sperm production inhibition and for normal functioning of secondary sex glands to permit normal sexual activity without fertility. The constituents of the composition are gossypol or derivatives thereof for controlling the sperm production combined with an orally active replacement androgen for counteracting the effect of the gossypol or its derivatives upon secondary sex glands. Ranges of composition and discussions of test results are described together with the method of determining the dose levels needed to achieve the desired result. The composition may be preferably administered as a pill. A maintenance dose level may be utilized after azoospermia sperm levels are achieved.
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: April 26, 1983
    Inventor: Patricia B. Coulson