Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7069976 | Method and arrangement for controlling the temperature of the outstream flow from a heat exchanger and measuring produced heat Process and device for controlling the temperature of an outbound secondary flow in a secondary circuit from a heat exchanger by a primary flow in a primary circuit, via a member that regulates the primary flow, influenced by a control unit. The enthalpy difference ... | 07/04/2006 |
| 7028768 | Fluid heat exchange control system A method of controlling a hydronic system is provided. The hydronic system includes a plurality of fluid heat exchange units for feeding a load, and a bypass valve for bypassing the load. The method includes operating at least a first and a second fluid heat exchang... | 04/18/2006 |
| 7011143 | Method and apparatus for cooling electronic components A modular fluid unit for cooling heat sources located on a rack, the modular fluid unit comprising: a heat exchanger in fluid communication a pump; and wherein the modular fluid unit is mountable within the rack and is configurable to be in fluid communication with ... | 03/14/2006 |
| 6695047 | Modular temperature control system A temperature control system includes an enclosure having a plurality of adjoining walls. At least one inlet is disposed within at least one of the walls. The at least one inlet has an electrically controlled inlet fan associated with it. A plurality of o... | 02/24/2004 |
| 6176305 | Ventilator system and method The ventilator system and method use a isolating heat exchanger to selectively transfer heat between exhaust air leaving an enclosed space and outside air entering the enclosed space. The system operates in three basic modes, under the control of a microp... | 01/23/2001 |
| 5632154 | Feed forward control of expansion valve A method of controlling an expansion valve in a refrigeration system. The method comprises the steps of controlling the modulation of the expansion valve based upon a first feedback control criteria; and controlling the modulation of the expansion valve b... | 05/27/1997 |
| 5318106 | Method and apparatus for controlling the flow of process fluids A method and apparatus for coupling a primary loop with a secondary loop for circulating processing fluids therebetween comprising in combination a first connection for the feed line of the primary loop and a second connection for the return line of the p... | 06/07/1994 |
| 5209284 | Reduced pressure heat treating device A heat treating device used in chemical and food industries, including a heat exchanger of jacket type, for example, which surrounds a reaction vessel, wherein heat media such as steam and water are fed to the heat exchanger and also sucked by sucking mea... | 05/11/1993 |
| 5165377 | Hydraulic fan drive system A system is provided for operating a fan to move air past a heat exchanger. The fan is driven by hydraulic fluid supplied from a pressure compensated pump. Such fluid driven fan systems are commonly utilized on industrial vehicles and on stationary engine... | 11/24/1992 |
| 5123478 | Cooling apparatus for electronic equipment with fail-safe condensation protection A cooling apparatus for cooling a given device which is incorporated in a computer or similar electronic equipment and generates heat by circulating a liquid coolant through the device of interest. A secondary cooling liquid exchanges heat with a primary ... | 06/23/1992 |
| 4963499 | Method for the calorimetry of chemical processes A calorimeter for measuring the thermodynamic and kinetic characteristics of chemical reactions, microbial fermentations, and other processes of industrial importance is described. The present invention also relates to a method of operation of this appara... | 10/16/1990 |
| 4737531 | Waste heat recovery In a heat exchange unit that recovers waste heat from carbon black smoke by preheating oxygen-containing gas such as air being passed to a carbon black producing reactor, a control loop is provided that automatically diverts the oxygen-containing gas bein... | 04/12/1988 |
| 4638851 | Cooling apparatus for metal strip An apparatus in which a metal strip is passed in contact partly around the outer circumferences of a number of spaced cooling rolls through which coolant passes. The apparatus includes temperature detectors for detecting the temperature of the strip befor... | 01/27/1987 |
| 4615481 | Air conditioner An air conditioner comprising temperature detectors for respectively detecting air temperatures at suction and discharge sides, a fan motor whose rotational speed is controllable, a motor driven wind directing plate, and a control section for controlling ... | 10/07/1986 |
| 4574870 | Method and apparatus for controlling a counter-flow heat exchanger A figure of effectiveness of a heat exchanger is maintained at a predetermined level, even when one of the input fluid flows varies in an incontrollable manner, without the need for flow meters to detect any flow variations. Temperature sensors are arrang... | 03/11/1986 |
| 4512387 | Power transformer waste heat recovery system Large power transformers such as used at electrical generating plants utilize oil for cooling with the heat removed by air cooled radiators. Several air cooled radiators are removed from the transformers and the oil circulated through plate heat exchanger... | 04/23/1985 |
| 4509345 | Laundry heat recovery system A laundry heat recovery system includes a heat exchanger associated with each dryer in the system, the heat exchanger being positioned within the exhaust system of the dryer. A controller responsive to the water temperature of the heat exchangers and the ... | 04/09/1985 |
| 4498524 | Heat exchanger with by-pass A method and means for extracting heat from an exhaust stack under highly corrosive and fluctuating conditions. An in-line exhaust gas heat exchanger having selective dual concentric exhaust paths and having a plurality of longitudinal structural stringer... | 02/12/1985 |
| 4479532 | A system for controlling a hydraulic cooling fan for an engine as a _function of ambient and coolant temperatures An automatic actuator system for a cooling fan of an internal combustion engine comprising a first detector for detecting the temperature of the cooling water in a cooling system for the engine and a second detector for detecting the atmospheric temperatu... | 10/30/1984 |
| 4474169 | Solar heat collector control device A control arrangement particularly useful in solar heat collecting systems utilizing a heat transfer medium which is heated during circulation through first and second solar collectors and emitted to a receiver. The first and second solar collectors, incl... | 10/02/1984 |
| 4284127 | Carpet cleaning systems The specification describes an arrangement adapted for use in a carpet cleaning system and more particularly, an arrangement in which the heat given off by an internal combustion engine, is used through heat transfer to heat cleaning fluid of the carpet c... | 08/18/1981 |
| 4240499 | Balanced waste heat recovery and dissipation system A system for recovering and utilizing, to a controlled and variable extent, waste heat from a coolant fluid. The amount of heat recovery varies in proportion to the marginal costs associated therewith. Heat laden coolant passes through an interior heat ex... | 12/23/1980 |
| 4158384 | Heat storage system A heat storage system consisting of a compartmented tank containing a liquid medium capable of storing heat therein, a flow control system operable to establish a liquid flow in the tank operable to concentrate the hottest liquid in a compartment remote f... | 06/19/1979 |
| 4156455 | Method and apparatus for controlling a heat transfer installation A method of controlling a heating system includes regulating feed temperature of the heat carrying medium as a function of the differential between the feed medium temperature and the return medium temperature, and limiting the lower limit of the temperat... | 05/29/1979 |
| 4102387 | Auto ignition temperature control system A temperature control system safely and efficiently protects critical aircraft surfaces from reaching fuel auto ignition temperature with cooling provided by a relatively small and light heat exchanger.... | 07/25/1978 |
| 4007780 | Heat exchange system and method and control device therefor A heat exchange system having a source of heat exchange output fluid for effecting a heat exchange function and having a source of return fluid resulting from the output fluid providing its heat exchange function. A thermally operated element controls the... | 02/15/1977 |
| 4003728 | Method and apparatus for controlling the storage condition of perishable commodities in long-distance transport vehicles A method and apparatus for transporting perishable commodities provides recirculation of moisture saturated air at a predetermined optimum storage temperature through the cargo from bottom to top of individual van containers. Temperature sensors are provi... | 01/18/1977 |