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:
Mar. 25, 2008
Filed:
May. 24, 2006
Joseph F. Lawlor, Arlington, MA (US);
Joseph D. Musto, Dover, MA (US);
Jerome M. Donovan, Cape Elizabeth, ME (US);
Jeffrey M. Hardy, Medford, MA (US);
Joseph F. Lawlor, Arlington, MA (US);
Joseph D. Musto, Dover, MA (US);
Jerome M. Donovan, Cape Elizabeth, ME (US);
Jeffrey M. Hardy, Medford, MA (US);
Reference Diagnostics, Inc., Bedford, MA (US);
Abstract
A data logger that avoids wasting power when data gathering is not needed (or is done by other means), but is activated automatically, without the need for human intervention, when it is needed. The data logger senses and stores data when a primary power source has failed. The data logger includes at least one back-up power source, and a detector switch connected to a primary power source and to one or more back-up power sources, the detector-switch detecting a condition indicative of the primary power source failure state, and connecting at least one back-up power source to provide power to the sampler, the storage medium and the sensor upon detection of the failure condition.