Dynamic temperature control for use with a heating and/or cooling system including at least one temperature sensor

• US 5,266,778 A
• Filed: 05/29/1992
• Issued: 11/30/1993
• Est. Priority Date: 05/29/1992
• Status: Expired due to Fees

• Current Assignee: United States Manufacturing Company, LLC
• Original Assignee: Hollister Incorporated
• Inventors: Bailey, David F.
• Primary Examiner(s): Paschall, Mark H.
• Application Number:
  US07/891,427
• Time in Patent Office: 550 Days
• Field of Search: 219/497, 219/501, 219/508, 219/509, 219/494, 219/506, 219/212, 219/490, 128/400, 340/588, 340/589
• US Class Current: 219/497
• CPC Class Codes: G05D 23/1919 characterised by the type of controller

Abstract

A dynamic temperature control to selectively generate one of a plurality of discrete voltage level temperature control signals for use with a fluid circulating system operable in a heating or cooling state including a control panel to select the system operating parameters including operating temperature of the fluid and at least one temperature sensor, the dynamic temperature control comprises logic circuitry to receive temperature input signals from the control panel and temperature sensor and to generate one of the plurality of discrete voltage level temperature control signals proportional to the difference between the input signals from the control panel and the temperature sensor to control the operating temperature of the fluid circulated through the fluid circulating system.

Claims

1. A dynamic temperature control for use with a heating and/or cooling system including at least one temperature sensor to selectively generate one of a plurality of discrete predetermined direct current voltage level temperature control signals for use with a fluid circulating system operable in a heating or cooling state including a control panel to select the system operating parameters including operating temperature of the fluid and at least one temperature sensor, said dynamic temperature control comprises logic circuitry to receive temperature input signals from the control panel and temperature sensor and to generate one of said plurality of discrete predetermined direct current voltage level temperature control signals proportional to the difference between the input signals from the control panel and the temperature sensor and the rate of change of the fluid temperature to control the operating temperature of the fluid circulated through the fluid circulating system.

2. A dynamic temperature control for use with a heating and/or cooling system including at least one temperature sensor to selectively generate one of a plurality of discrete voltage level temperature control signals for use with a fluid circulating system selectively operable in a first or second selected operating mode including at least one thermal module operable in heating or cooling state to monitor and control the temperature of fluid circulated through a remote liquid circulation manifold comprising a control panel to select the system operating parameters including a selected operating temperature set point and a first sensor to sense the temperature of the fluid including means to generate a first temperature signal corresponding to the temperature of the fluid and a second sensor displaced adjacent the remote liquid circulation manifold including means to generate a second temperature signal corresponding to the temperature adjacent the remote liquid circulation manifold and a micro control including logic circuitry to receive signals from said control panel and said first and second temperature signals from said first and second temperature sensors respectively and to selectively generate thermal module control signals to control the heating or cooling of the thermal module by comparing said selected operating temperature set point with the temperature sensed by said first sensor when operating in said first selected operating mode to selectively generate said thermal module control signals and by comparing said selected operating temperature set point with the temperature sensed by said second sensor when operating in said second selected operating mode to selectively generate said thermal module control signals proportional to the difference between the selected operative temperature set point and the second temperature and the rate of change of the liquid, said temperature controlled fluid circulating system further operable in an alternate operating mode wherein said logic circuitry further includes an alternate operating mode logic means such that said temperature controlled fluid circulation system operates in said alternate operating mode when in said second selected operating mode and said second temperature signal exceeds a first predetermined temperature range.