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

Outdoor ambient temperature determination

Patent 4835715 Issued on May 30, 1989. Estimated Expiration Date: Icon_subject December 17, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Heat pump system defrost control
Patent #: 4209994
Issued on: 07/01/1980
Inventor: Mueller ,   et al.

Microcomputer control for heat pump system
Patent #: 4338791
Issued on: 07/13/1982
Inventor: Stamp, Jr. ,   et al.

Multiple source heat pump
Patent #: 4380156
Issued on: 04/19/1983
Inventor: Ecker

Automatic fault diagnostic apparatus for a heat pump air conditioning system
Patent #: 4381549
Issued on: 04/26/1983
Inventor: Stamp, Jr. ,   et al.

Air conditioning control method
Patent #: 4432210
Issued on: 02/21/1984
Inventor: Saito

Airconditioner with timer controlled compressor bypass
Patent #: 4457137
Issued on: 07/03/1984
Inventor: Kohzuma

Heat pump refrigerant charge control system
Patent #: 4484452
Issued on: 11/27/1984
Inventor: Houser, Jr.

Residential heating, cooling and energy management system
Patent #: 4645908
Issued on: 02/24/1987
Inventor: Jones

Single-sensor head pump defrost control system
Patent #: 4662184
Issued on: 05/05/1987
Inventor: Pohl ,   et al.

Electronic thermostat with selectable mode to control heating only, cooling only or both heating and cooling Patent #: 4683939
Issued on: 08/04/1987
Inventor: Levine

Inventors

Assignee

Application

No. 06/942733 filed on 12/17/1986

US Classes:

700/278, Specific thermally responsive controller62/155, Including time or program actuator62/156By temperature

Examiners

Primary: Lall, Parshotam S.
Assistant: Ramirez, Ellis B.

Attorney, Agent or Firm

International Class

G05D 23/19 (20060101)

Abstract

An outdoor coil temperature detection scheme in a heat pump system effective for developing outdoor ambient temperature indications from outdoor coil temperature data, for use in heat pump control.

PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$16.95more info
 
Sign InRegister
Username  
Password   
forgot password?