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:
Oct. 20, 1998
Filed:
Dec. 26, 1996
Raymond J Guzowski, Fenton, MI (US);
Fanuc Robotics North America, Inc., Auburn Hills, MI (US);
Abstract
An apparatus (50) and method for dispensing fluid material (55) from a dispensing gun (53) onto a workpiece (17) includes a metering cylinder (56) having a metering chamber formed therein with a pair of variable volume chamber portions (66,67), a valve assembly (52) connected to a supply of fluid material (51), the dispensing gun and to the chamber portions, and a control (58) connected to a meter actuator (60) connected to the metering cylinder and a valve actuator (59) connected to the valve assembly. The control (58) controls the meter actuator (60) and the valve actuator (59) in first and second modes of operation to dispense the fluid material (55) from the dispensing gun (53) by alternately drawing from the supply of fluid material (51) through the valve assembly into a first one of the chamber portions and forcing the fluid material from a second one of the chamber portions through the valve assembly to the dispensing gun. If the amount of material dispensed is less than the volume of the metering chamber, the control (58) controls the metering actuator (60) and the valve actuator (59) in a third mode of operation to force the fluid material in the metering cylinder (56) from one of the chamber portions into the other one of the chamber portions through the valve assembly (52) without forcing the fluid material from the valve assembly to the dispensing gun thereby resetting the dispensing apparatus.