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. 01, 1988
Filed:
May. 20, 1986
Leonard Jacobs, Chestnut Hill, MA (US);
William Arzberger, Medfield, MA (US);
Peter Coppola, Burlington, MA (US);
Thomas A Gross, Lincoln, MA (US);
Jet Spray Corp., Norwood, MA (US);
Abstract
In connection with a beverage dispensing machine, an automatic self-fill control apparatus for the machine for controlling the filling of the liquid tank, which liquid tank is fed with a combination of water and a concentrate syrup adapted to be mixed with the water within the tank. A sensor member is disposed in the tank in a position so as to be responsive to the rise and fall of liquid in the tank. Pump means are provided adapted to pump the syrup to the tank. Control of water flow to the tank is also carried out. The sensor member has a low probe for detecting a low predetermined level of liquid in the tank and a high probe for detecting a high predetermined level of liquid in the tank and adapted to respectively generate low and high probe signals. Control circuit means is provided receiving and responsive to these low and high probe signals for controlling the pump to operate when the low probe is uncovered and terminating the pumping action when the liquid level reaches the high probe position so that the liquid level in the tank is always maintained at a level between the low and high probes. Also provided is a third sensor for determining an unsafe condition referred to herein as a system override to shut the system down in the event that the high probe is covered and that the liquid level proceeds to the even higher third probe. Also in the system of the present invention, there is provided a sensor for detecting an out-of-syrup condition.