Boots – shoes – and leggings
Patent
1994-12-09
1998-03-17
Voeltz, Emanuel T.
Boots, shoes, and leggings
36455101, 364557, 73112, 236 10, 165 12, G01K 700, G05D 1670
Patent
active
057294747
ABSTRACT:
To anticipate potential failure of a temperature modification device (e.g., heating, ventilating and air conditioning equipment used in a commercial building), an efficiency value representing the ability of the temperature modification device to change temperature in a predetermined zone is repeatedly computed. When one of these values is computed, it is used in determining whether the ability of the temperature modification device to change temperature in the predetermined zone has deteriorated over time. This is done by comparing a current efficiency value with a previous efficiency value. In response to a determined deterioration exceeding a predetermined tolerance, a control signal for initiating inspection of the temperature modification device is communicated, thereby enabling the device to be serviced in response to a detected operating condition of the device and before actual failure of the device.
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patent: 4898230 (1990-02-01), Tsuchiyama et al.
patent: 5073862 (1991-12-01), Carlson
patent: 5276630 (1994-01-01), Baldwin et al.
patent: 5415346 (1995-05-01), Bishop
Hildebrand Paul N.
Knight T. Frank
Lawrence Kelley A.
Light W. John
Excel Energy Technologies, Ltd.
Shah Kamini S.
Voeltz Emanuel T.
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