The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 1997
Filed:
Sep. 29, 1994
Clifford B Schrock, Portland, OR (US);
Herbert E Engel, Burlington, MA (US);
Analytical Systems Engineering Corp., Burlington, MA (US);
Cablebus Systems Corporation, Portland, OR (US);
Abstract
Apportioning energy costs among units by sensing a heat exchange for at least one heat exchanger in each unit. In response to this sensing, a value corresponding to an amount of heat provided by the heat exchanger is determined for each unit. Each value is transmitted to a central location, and they are processed to apportion energy cost for each unit as a function of the respective value. Total values for each heat exchanger can be summed to provide a summation value corresponding to a total amount of heat provided to the unit over time, and energy costs can be apportioned as a function of this summation value for each unit. A probe that includes a probe body and an electrical heat sensing element mounted in the probe body. A tamper detecting mechanism responds to forces applied to the probe and interacts with a conductive lead of the probe to provide an electrical tampering indication. The probe may be attached by an adhesive to a radiator, and it can include a structural weakness, which can cause breakage of the lead.