U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5307162

Cloaking System Using Optoelectronically Controlled Camouflage

A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.

Newsletter  PatentStorm News

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.

 

Class 165/262 - Timer


Subclass of Class 165 - Heat exchange
Definition: Subject matter wherein said plurality of heating or cooling
No. of patents: 9
Last issue date: 02/07/2006


NumberTitleIssue Date
6994158Multi-load thermal regulating system having electronic valve control
System and method for reducing temperature variation among components in a multi-component system. In this respect, component temperatures are controlled to remain relatively constant (approximately within 5° C.) with respect to other components, while allowing for...
02/07/2006
6769482System and method for switching-over between heating and cooling modes
A heating, ventilation and air conditioning (HVAC) device (104) which includes both heating and cooling operating modes provides an easy-to-use interface (110) for selecting the operating parameters of the device (104). The interface (110...
08/03/2004
6598671Hybrid heating system and method for vehicles
An apparatus for heating the interior compartment of a vehicle, the apparatus has a primary heating system, a secondary heating system and an operating system. The primary heating system receives and circulates an engine coolant through a heater core. The...
07/29/2003
6230979Controller for two-stage heat source, usable with single and two stage thermostats
A controller for a two-stage heat source that can be used with a single stage or a two stage thermostat. The controller includes a second stage delay timer that initiates second stage heating when the timer is decremented to zero. The timer is reset when ...
05/15/2001
5022460Control of staged heating and cooling apparatus by a four-wire thermostat
A heating and cooling apparatus wherein either or both the heating apparatus and cooling apparatus are two-stage is controlled by a thermostat through four connecting wires. A signal on one of the wires enables the functions of controlling operation of th...
06/11/1991
4971136Dual fuel heat pump controller
An operating system for a dual fuel heating system having first and second heat pump stages, first and second gas furnace stages, an executive controller for tracking time increments and call control strategies at appropriate levels, a demand control for ...
11/20/1990
4947928VAV system coordinator
A microcomputer-based system coordinator for variable air volume (VAV) system through which conditioned air is supplied to a plurality of zones. The VAV system coordinator (VSC) is used to coordinate a central system VAV cooling and heating operation base...
08/14/1990
4638850Electronic thermostat
An electronic thermostat for controlling multiple temperature altering apparatus of an animal enclosure or the like. A voltage divider to produce a plurality of temperature sensor signals which are used to produce primary or override actuation signals. Th...
01/27/1987
4293027Control system for heating and cooling units
A control system for space heating and cooling units which includes modulated damper means for controlling entry of outside air. Temperature sensitive resistances sense the outside air temperature, the temperature in the space, and the temperature of retu...
10/06/1981
 
Sign InRegister
Username  
Password   
forgot password?