Coating processes – Measuring – testing – or indicating
Patent
1997-09-30
2000-01-04
Edwards, Laura
Coating processes
Measuring, testing, or indicating
4272071, 4272084, 118663, 118665, 118684, 118688, 118690, 118699, 118712, 118321, 239583, 239584, 2395854, B05D 100
Patent
active
060107405
ABSTRACT:
An apparatus and method for controlling the opening of a solenoid actuated valve in a sealant dispensing gun are disclosed. A proximity sensor is provided adjacent a portion of the needle valve stem in order to sense when the needle valve has reached its open position. A dispense timer is initiated when the proximity sensor indicates that the needle valve has reached its open position. In this manner, the needle valve may be maintained in its open position for the desired dispense time only without regard to the response time of the solenoid device. Also disclosed is an apparatus and method for adjusting the valve open limit of a sealant dispensing device which incorporates a solenoid or motor actuated valve open limit device. A flow sensor is located in-line with the sealant supply path of a dispensing gun in order to monitor the dispense weight during each valve open cycle. A moving average of the dispense rates may then be calculated and compared to predetermined limits. If the limits are exceeded, the processor the processor automatically adjusts the solenoid or motor actuated valve open limit device in the proper direction in order to bring the dispense rate back into the proper dispense rate range.
REFERENCES:
patent: 2189783 (1940-02-01), Eberhart
patent: 2587538 (1952-02-01), Seaman
patent: 2732315 (1956-01-01), Birkland
patent: 3001506 (1961-09-01), Ford
patent: 3412971 (1968-11-01), McDivitt
patent: 3521598 (1970-07-01), Straw
patent: 3612479 (1971-10-01), Smith, Jr.
patent: 3761053 (1973-09-01), Bedo et al.
patent: 3780981 (1973-12-01), Horak et al.
patent: 3852095 (1974-12-01), Hogstrom
patent: 4262629 (1981-04-01), McConnellogue et al.
patent: 4295573 (1981-10-01), Terry et al.
patent: 4342443 (1982-08-01), Wakeman
patent: 4437488 (1984-03-01), Taggart et al.
patent: 4498415 (1985-02-01), Tsuchiya et al.
patent: 4546955 (1985-10-01), Beyer et al.
patent: 4840138 (1989-06-01), Stirbis
patent: 4852773 (1989-08-01), Standlick et al.
patent: 4884720 (1989-12-01), Whigham et al.
patent: 4958769 (1990-09-01), Schowiak
patent: 5197508 (1993-03-01), Gottling et al.
patent: 5215587 (1993-06-01), McConnellogue et al.
patent: 5263608 (1993-11-01), Kiernan et al.
patent: 5419492 (1995-05-01), Gant et al.
patent: 5749969 (1998-05-01), Kobak et al.
Techs Publication "Pressure Monitoring Control System for Reciprocating Compounding Systems", (4 pages).
Lucas Ledex, Inc. Catalog, "Series 50-L Stepping Solenoids", pp. SS-1 to SS-6, publication date unknown.
Lucas Ledex, Inc. Catalog, "Low Profile Solenoids--Push or Pull", pp. LP-1 to LP-4, publication date unknown.
Buckley Ian J.
Godfrey Michael
Rutledge Clinton W.
Weil William W.
Edwards Laura
Goodwin, Esq. Michael A.
O'Meara, Esq. William P.
Preferred Machining Corporation
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