"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 6336510 | Sprinkler device for fire extinguishing systems A sprinkler device for fire extinguishing systems is adapted to be coupled to a fluid supply line and placed in an environment which is to be protected from fire. The device has an actuator sensitive to room temperature which causes motion of a shutter fo... | 01/08/2002 |
| 6250092 | Actuator and method for controlling temperatures in a multiple compartment device An actuator is provided for controlling temperatures in a multiple compartment device wherein the actuator includes a housing and a linear oscillator disposed within the housing. The linear oscillator is coupled with an integral push rod, wherein the line... | 06/26/2001 |
| 4678117 | Temperature responsive gas controller apparatus 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 upo... | 07/07/1987 |
| 4456169 | Electro-mechanical steady state thermostat 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 tem... | 06/26/1984 |
| 4354633 | Manual main shutoff valve for a gas burner combination control 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... | 10/19/1982 |
| 4319714 | Device for setting a valve 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 ... | 03/16/1982 |
| 4086987 | Viscous fluid clutch 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 cham... | 05/02/1978 |
| 4071190 | Thermostatic vent control 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 ... | 01/31/1978 |
| 4000848 | Regulating drive, especially for a thermostatically controlled valve shaft 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... | 01/04/1977 |
| 3970246 | Air conditioning control system 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 ... | 07/20/1976 |
| 3944135 | Condition responsive valve construction and method of making the same 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 t... | 03/16/1976 |