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. 15, 1978
Filed:
Jun. 09, 1977
Clifford Carl Johnson, Arlington Heights, IL (US);
Vincent Elliott Eitzen, Marco Island, FL (US);
American Hospital Supply Corporation, Evanston, IL (US);
Abstract
Punched cards, used to identify items to be ordered from a central location, are selected and placed in a card reader which is located at the subscriber. Information may also be entered manually by a keyboard. In either case, the information is encoded into tone signals which are transmitted to the central location for recording and verification. When an 'accept' tone signal is returned to the subscriber, indicating that the previously transmitted block of data has been received and found to be acceptable, a card feed signal actuates the card reader to feed the next card. If a 'reject' tone is returned, indicating that the data received was unacceptable, the operator may enter data manually via the keyboard, re-run the card that had not been accepted, or simply skip the rejected card. The system is compatible with existing telephone communication equipment.