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:
Dec. 21, 1982
Filed:
Feb. 19, 1981
Russell A Parker, Holliston, MA (US);
Other;
Abstract
Process timing and controlling system for use in photographic darkrooms involving multiple timing and control process steps including a control console, programmable in at least one channel to step through substantially all timing and control process steps, timing means in at least one channel for measuring time remaining in a particular process step, timing indicator means in at least one channel for indicating time remaining in a particular process step, a source of power connecting the console and the timing means which when activated supplies power to the console and timing mean, means for initiating a program step in at least one channel, switching means in at least one channel for stepping through the steps independently of the programmed time, a plurality of relays for operating programmed timing and control functions, and relay driving means programmed to select an appropriate output to activate the relay.