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:
Aug. 16, 1977
Filed:
Dec. 29, 1975
Applicant:
Inventors:
Frank V Cassarino, Jr, Weston, MA (US);
George J Barlow, Tewksbury, MA (US);
Assignee:
Honeywell Information Systems Inc., Waltham, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
307149 ; 324 51 ; 361189 ; 340256 ;
Abstract
A plurality of logic boards coupled together over a common electrical bus by use of a plurality of connectors, at least one per board, which includes at least one pair of terminals for coupling an interlock signal wire which is daisy chained through each of such boards and connectors. By providing a known signal state on the interlock signal wire at one end of the bus, an improper connection or an error condition in one of the logic boards will be indicated by a sensor, which may be included at the last logic board, if the known signal state is not received at the sensor.