Dispensing – With discharge assistant – With bypass or return to supply
Patent
1994-01-24
1996-03-05
Shaver, Kevin P.
Dispensing
With discharge assistant
With bypass or return to supply
138 43, 222504, 251126, B67D 534
Patent
active
054959632
ABSTRACT:
A variable restrictor valve for use in an intermittent dispensing system having a recirculation loop. The restrictor valve establishes a more linear relationship between the amount of adjustment made thereto and the resulting pressure drop over the restrictor valve in the recirculation loop. A first embodiment of the restrictor valve changes the length of the flow path created by a helical groove to thereby adjust the flow resistance through the valve. A second embodiment uses a valve member in the form of a perforated cylindrical tube which is adjustable to present a varying number of perforations as the inlet to the tube and thereby allow adjustment of the flow resistance. A third embodiment utilizes a helical spring as a valve member in which adjustable spacing between the coils of the spring provides adjustability of the flow rate through the spring.
REFERENCES:
patent: 1918959 (1933-07-01), Culp
patent: 2327025 (1943-08-01), Davis
patent: 2402729 (1946-06-01), Buchanan
patent: 2833311 (1958-05-01), Baldelli
patent: 3907249 (1975-09-01), Persson
patent: 4200207 (1980-04-01), Akers et al.
patent: 4724899 (1988-02-01), Frates et al.
patent: 4734188 (1988-03-01), Burdette, Jr. et al.
patent: 4850514 (1989-07-01), Scholl et al.
Miller Scott R.
Ziecker Roger A.
Nordson Corporation
Shaver Kevin P.
LandOfFree
Valve for controlling pressure and flow does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Valve for controlling pressure and flow, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve for controlling pressure and flow will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1407394