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:
Apr. 22, 1997
Filed:
Jan. 06, 1995
Applicant:
Inventor:
Lon O Hocker, III, Falmouth, MA (US);
Assignee:
Onset Computer Corporation, Pocasset, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
364483 ; 364420 ; 364550 ; 364509 ; 364481 ;
Abstract
A contact closure data logger which monitors state changes in a main switch, and records the time at which the state changes occur. To conserve power and accommodate less capable microprocessors, monitoring is done on a discreet basis. Various types of switches can be used, such as reed switches, FETs and mechanical switches, making the logger particularly useful for energy usage monitoring studies and retrofit of tipping bucket rain gauges. Dependent switches and measurement devices can be arranged in a hierarchical fashion to be monitored and otherwise acted upon when state changes occur in the main switch.