Fluid handling – Systems – Valves with separate – correlated – actuators
Patent
1980-07-24
1982-08-24
Walton, George L.
Fluid handling
Systems
Valves with separate, correlated, actuators
137597, 1375991, 251209, F17D 301, F16K 510
Patent
active
043456227
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention refers to a control and cut-off device.
This control and cut-off device is intended for so-called pre-setting of media flowing to consumer apparatuses and flowing back therefrom and to cut-off the consumer apparatus from a source of medium. As examples may be mentioned dosing equipments for realizing chemical processes of various kinds, ventilation assemblies, heating and cooling plants among which conditioning plants (air condition) are also classified.
BACKGROUND ART
Control and cut-off devices of this kind known up to now have been found to be unreliable and have not provided the desired function owing to a too primitive design, as unauthorized persons have been able to change the pre-set position without difficulty. Also the precision has been inferior and the valves have been incapable of function even after a short period of use. They have also been too unwieldy or costly in respect of manufacture and maintenance and have often consisted of two individual valves which have been built together.
DISCLOSURE OF INVENTION
The invention aims at removing the drawbacks of prior control and cut-off devices and to provide a device which is reliable, even after a long period of use, precisely and easily adjustable and so designed that it is compact and simple manufacture. It should be easy to pre-set and for the pre-setting a special key is used. Accordingly, the pre-setting can be changed only by authorized persons which have been provided with this key.
This is achieved by the fact that the control and cut-off device according to the invention has been given the characteristics defined in the patent claims.
BRIEF DESCRIPTION OF DRAWINGS
The invention is explained more in detail in connection with the drawings showing an embodiment of the invention.
FIG. 1 is a longitudinal section of the device according to the invention,
FIG. 2 shows a detail included in the device according to FIG. 1 in a lateral view,
FIG. 3 is a section along the line III--III in FIG. 2,
FIG. 4 shows an alternative design of the detail in FIG. 2, and
FIG. 5 shows a section along the line V--V in FIG. 4.
BEST MODE OF CARRYING OUT THE INVENTION
The control and cut-off device for media shown in the drawing includes a valve housing 10 having an inlet opening 12 and an outlet opening 14 for connection to a source of medium. The opening 12 can of course also be used as outlet and the opening 14 as an inlet, signifying that the direction of flow through the valve housing 10 is thereby reversed. This also applies to two openings 16, 18 which may be inlet and outlet or vice versa for a consumer apparatus or device which is intended for connection to these two openings and in which the medium is to be used, for example dosing equipment, ventilation apparatus, heat exchanger, radiator, cooling plant or consumer devices comparable therewith.
The valve housing 10 has a longitudinal cylindrical boring 20 in which there is an insertable and rotatable cut-off slide 22 similarly of cylindrical design. The slide 22 abuts with its right hand end, as seen in the drawing, against the bottom 24 of the boring 20 and is formed at its inner wall between the two openings 16, 18 with a peripheral flange 26, forming an opening 28 which divides the interior of the slide into two chambers 30 and 32. At its other, left hand end, as seen in the drawing, the slide 22 is provided with a peripheral groove 34 for receiving a locking washer 36, the purpose of which will be described in the following. The slide 22 is kept in its position in the boring 20 by a closing member 38 being fixably arranged for example by means of a screw thread at the left hand end of the valve housing 10, as seen in FIG. 1, whereby it will abut against the slide 22 and lock it against axial motion in its position.
The chamber 30 of the cut-off slide 22 is provided with two openings 40, 42 which connect the chamber 30 with the openings 14 and 18 of the valve housing and which may have any desired shape according to the demands which are made on the
REFERENCES:
patent: 1354522 (1920-10-01), Takala
patent: 1496584 (1924-06-01), McCrink
patent: 2491429 (1949-12-01), Thomas, Sr.
patent: 2500239 (1950-03-01), Beyette
patent: 2642254 (1953-06-01), Armstrong
patent: 2867237 (1959-01-01), Allingham
patent: 3618855 (1971-11-01), Nilsson et al.
Eslinger Lewis H.
Ingenjorsfirma T. Henningsson AB
Walton George L.
LandOfFree
Control and cut-off device for flowing media does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control and cut-off device for flowing media, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control and cut-off device for flowing media will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1433089