Fluid handling – Processes – Cleaning – repairing – or assembling
Patent
1994-07-05
1996-12-03
Chambers, A. Michael
Fluid handling
Processes
Cleaning, repairing, or assembling
137554, 137556, F16L 5518, F16K 3700
Patent
active
055798004
ABSTRACT:
An improved rotary valve indicator apparatus (10) and method is disclosed that includes an electronics switch housing (15), filled with epoxy or other generally elastomeric material (29) to hermetically seal, thus environmentally seal, the switch housing (15). A pair of hermetically sealed reed switches (30, 32) are employed within the electronics switch housing (15) for indicating the open and closed position of the valve (17). A pair of corresponding magnets (26, 28) are mounted within a separate magnet holder (16) that is mounted to a rotatable member (20) of a rotary valve actuator (13). Light emitting diodes (42, 44) radiate from a side portion (57) of the electronics switch housing (15) and are connected in a manner whereby they indicate not only that the respective switch (30, 32) is closed but also that it is conducting electricity. Additional electronics switch housings (15A)are stacked upon each other and additional magnet holder housings (16A) are stacked upon each other to provide for multiple circuits that may be operated at differing voltages or types of power. The electronics switch circuit (14) operates with a wide range of power or signals including alternating and direct current.
REFERENCES:
patent: 3446924 (1968-07-01), Giambertoni
patent: 3522596 (1970-08-01), Fowler et al.
patent: 3711797 (1973-01-01), Flanagan et al.
patent: 3740680 (1973-06-01), Schneidinger
patent: 3754106 (1973-08-01), MacDonald
patent: 3781499 (1973-12-01), Reichert et al.
patent: 3903383 (1975-09-01), Marker
patent: 4107500 (1978-08-01), Distler et al.
patent: 4160221 (1979-07-01), Ohara et al.
patent: 4209398 (1980-06-01), Ii et al.
patent: 4214133 (1980-07-01), Wolford et al.
patent: 4288671 (1981-09-01), Morrison
patent: 4440721 (1984-04-01), Wilson et al.
patent: 4497713 (1985-02-01), Geiger
patent: 4696325 (1987-09-01), Magee
patent: 4745383 (1988-05-01), Zovath et al.
patent: 4752657 (1988-06-01), Kane et al.
patent: 4800241 (1989-01-01), McNamara
patent: 4831350 (1989-05-01), Rose
patent: 4962290 (1990-10-01), Nelson et al.
patent: 4967792 (1990-11-01), Magee
patent: 5238022 (1993-08-01), Zink
patent: 5278530 (1994-01-01), Zovath
patent: 5295511 (1994-03-01), Schleinhege et al.
"Applications of Capacitive Proximity Switches." Exton, Pennsylvania: Efector, Inc. 1993.
"K-Switch.TM. Rotary Position Indicator." Bulletin No. K-Switch-590. Houston, Texas: Keystone International, Inc., 1989.
"New Product Release: Magnetic K-Switch.TM. Rotary Position Indicator." Bulletin No. AP-204. Houston, Texas: Keystone International, Inc., 1993.
"Proximity Switches." Selection Guide SG-10. Exton, Pennsylvania: Efector, Inc. 1993.
"Quadranorm Universal DC Proximity Switches." Quadranorm QN-9. Exton, Pennsylvania: Efector, Inc.
"Sentrol Industrial Product Line." Freeport, Texas: Sentrol Industrial, Jul. 1993.
StoneL Co. Brochure. Fergus Falls, Minnesota: StoneL Co., c. 1992.
"Zensor.TM. Systems." Missouri City, Texas: ((Z)) Industries, Inc. 1993.
Chambers A. Michael
Keystone International Holdings Corp.
LandOfFree
Rotary valve position indicator and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary valve position indicator and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary valve position indicator and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-778714