Back to results
US 4,224,956 AGranted
Adjustable proportioning valve
OwnerRichard F. Kleininventor
Life of this patent
Estimating the term…
Abstract
A fluid proportioning valve adjustable to provide a plurality of specific predetermined fluid proportions. To adjust the valve for one of the predetermined fluid proportions, the extent of displacement of a flow displaced proportioning piston is preselected by engagement of an adjustable stop member in one of a plurality of specific stop positions.
Claims40
A fluid proportioning valve which comprises:
- a tubular body structure having a first fluid inlet for receiving a first fluid and a second fluid inlet for receiving a second fluid and having an outlet,
- first fluid passage means in said body structure providing communication for passage of said first fluid from said first inlet to said outlet,
- second fluid passage means in said body structure providing communication for passage of said second fluid from said second inlet to said outlet for mixing of said second fluid with said first fluid,
- valve element structure movably mounted in said body structure for displacement from a first position blocking said second passage means to a second position at least partially clearing said second passage means, and
- means engageable between said body and element structures adjustably limiting the extent of displacement of said element structure in said second position so as to adjust the proportion of said second fluid that is mixed with said first fluid,
- said displacement limiting means comprising first and second stop means on the respective said structures which are in opposed, spaced-apart relationship in said first position of said element structure and are engageable against each other in said second position of said element structure, at least one of said stop means being adjustable,
- said stop means on the respective said structures in said first position of said element structure having a plurality of discrete predetermined spacings therebetween that are respectively selectable by adjustment of said adjustable stop means to provide respective discrete predetermined displacements of said element structure in its said second position,
- said adjustable stop means comprising pin means selectively movable to a plurality of discrete predetermined positions on its respective said structure.
5 more elements
A fluid proportioning valve which comprises:
- tubular body structure having a first fluid inlet for receiving a first fluid and a second fluid inlet for receiving a second fluid and having an outlet,
- first fluid passage means in said body structure providing communication for passage of said first fluid from said first inlet to said outlet,
- second fluid passage means in said body structure providing communication for passage of said second fluid from said second inlet to said outlet for mixing of said second fluid with said first fluid,
- valve element structure movably mounted in said body structure for displacement from a first position blocking said second passage means to a second position at least partially clearing said second passage means, and
- means engageable between said body and element structures adjustably limiting the extent of displacement of said element structure in said second position so as to adjust the proportion of said second fluid that is mixed with said first fluid,
- said displacement limiting means comprising first and second stop means on the respective said structures which are in opposed, spaced-apart relationship in said first position of said element structure and are engageable against each other in said second position of said element structure, at least one of said stop means being adjustable,
- said stop means on the respective said structures in said first position of said element structure having a plurality of discrete predetermined spacings therebetween that are respectively selectable by adjustment of said adjustable stop means to provide respective discrete predetermined displacements of said element structure in its said second position,
- said valve element structure comprising a piston slidably mounted in said body structure for displacement in a direction generally from said first fluid inlet toward said outlet,
- said piston comprising a stem portion substantially blocking said second passage means in said first position and at least partially opening said second passage means in said second position.
6 more elements
Dependencies are inferred from the claim text.