Lever Patents (Class 236/99G)
  • Patent number: 4678117
    Abstract: A system working in conjunction with a regulator having a diaphragm for controlling gas pressure within a gas system, wherein there is provided a spring system to control the diaphragm of the regulator, maintaining the regulator at a constant pressure upon adjustment of the spring. There is further provided an actuator mechanism, operating in conjunction with a sensing means comprising a closed cylindrical container containing gas, such as, butane, propane, or the like where upon expansion of the gas due to ambient temperature would activate the actuator mechanism for reducing the spring pressure on the diaphragm, and thus the gas pressure within the system. Likewise, where there is to be a reduction in ambient temperature, the concommitant contraction of a gas within the sensing means, allows increased pressure on the diaphragm for providing increased gas pressure within the regulator.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: July 7, 1987
    Inventors: Wesley J. Trahan, Albert B. Montandon
  • Patent number: 4456169
    Abstract: A steady state thermostat is disclosed which employs a magnetic flux coupling technique to obtain a greater stability in its operation, resulting in a significant reduction in fuel costs. The thermostat includes a temperature sensor operated arm and a temperature setting arm pivotally mounted on a common base pivot. A first magnetic field source is mounted on the first end of the sensor arm coincident with a first axis and a second magnetic field source is mounted on the second end of the sensor arm coincident with a second axis. A first magnetic field sensor is mounted on the first end of the setting arm coincident with the first axis and adapted for proximate positioning with respect to the first magnetic field source when the selected orientation of the setting arm corresponds to the desired ambient temperature being higher in magnitude than the existing ambient temperature.
    Type: Grant
    Filed: April 11, 1983
    Date of Patent: June 26, 1984
    Inventor: Clifford M. Martin
  • Patent number: 4354633
    Abstract: A manual main shutoff valve for a gas burner combination control of the type having a casing which includes a housing plate in overlying relation to a partition plate. An axially movable valve member is spring biased to a closed position seated on a valve seat portion of the partition plate. A rotary valve actuator carried by the housing plate includes a cam member in engagement with the cam follower of an operating lever which is pivotally mounted in the casing and operatively connected to the valve member for moving the valve member to an open position in response to rotation of the valve actuator to an "ON" position.
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: October 19, 1982
    Assignee: Essex Group, Inc.
    Inventors: Jesse H. Turner, Elmer E. Wallace
  • Patent number: 4319714
    Abstract: A device for setting the closed position of a valve of the type comprising a lever having a ramp acting on a thrust member of a slidable assembly. Adjustment is effected by adjustment means comprising a cam device interposed between the thrust member and the ramp on the lever. The cam device is disposed eccentrically of its journals and it is displaced angularly from the exterior by inserting a screwdriver or the like through a hole in the body. Ratchet teeth are provided on the cam device and cooperate with pawls for retaining the desired position of the cam device when it is attained.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: March 16, 1982
    Assignee: Societe Anonyme Francaise Du Ferodo
    Inventors: Jean-Louis Moulene, Jean-Francois Bouvot
  • Patent number: 4086987
    Abstract: A viscous fluid clutch including a clutch plate member rotatably mounted in the clutch housing, and serving as a rotatable wall dividing the chamber within the housing into an annular working chamber adjacent one face thereof and an annular reservoir chamber adjacent the other face thereof, with inlet and outlet ports formed in the clutch plate and a radially extending, resilient, flexible valve member mounted on the reservoir chamber face thereof for controlling the flow of fluid medium from the reservoir chamber to the working chamber through the inlet port, in response to the action of a temperature-responsive power unit mounted on the housing.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: May 2, 1978
    Assignee: General Motors Corporation
    Inventors: Michael W. Riley, Lane S. Duncan, Carl E. Bochmann
  • Patent number: 4071190
    Abstract: A thermostatically controlled damper is provided for an attic vent pipe having a single piece pivoted damper plate moved from substantially a horizontal to substantially a vertical position by a movable mechanism contacting the plate at an acute angle to both the open and closed plate positions.
    Type: Grant
    Filed: June 8, 1976
    Date of Patent: January 31, 1978
    Inventor: Edward B. Ford, Jr.
  • Patent number: 4000848
    Abstract: The invention relates to a regulating drive for a thermostatically controlled feed member, especially the shaft of a heating valve, having a pivotable, spring-loaded actuating lever carrying a control element, preferably an expansion-material element, the operating member of the said control element being stationary and the mobile element being supported on the actuating lever, characterized in that the control element is mounted pivotably on the actuating lever.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: January 4, 1977
    Inventors: Bernhard W. Braukmann, Rudolf Vollmer
  • Patent number: 3970246
    Abstract: A multiple zone forced air type air conditioning system is disclosed in which the amount of atmospheric air admitted to the system is governed according to sensed temperature conditions of air being circulated through the warmest zone. An atmospheric air sensing control unit responds to atmospheric air temperature and moisture levels to minimize introduction of atmospheric air to the system, notwithstanding the temperature of air being circulated through the warmest zone, when atmospheric air temperature is within a predetermined temperature range but contains more than a predetermined amount of moisture, and when atmospheric air temperatures are higher than the temperature range.
    Type: Grant
    Filed: August 19, 1975
    Date of Patent: July 20, 1976
    Assignee: Ranco Incorporated
    Inventors: Russell G. Attridge, Jr., Andrew Kulick
  • Patent number: 3944135
    Abstract: A condition responsive valve construction having a housing provided with a valve seat. A pair of metallic balls are secured together in abutting relation and are movable toward and away from the valve seat so that one of the balls acts to open and close the valve seat. A lever is movably mounted in the housing and acts between the balls to cause movement thereof upon certain movement of the lever caused by a condition responsive means sensing different conditions. Spring means are provided for tending to hold the balls in the valve seat closed position thereof and in a certain valve seat open position thereof so that the lever can have lost motion travel between the balls for creating a differential in the conditions required to open and close the valve seat.
    Type: Grant
    Filed: July 12, 1974
    Date of Patent: March 16, 1976
    Assignee: Robertshaw Controls Company
    Inventor: Fred Kalinovski