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US 6,427,716 B1Granted
Positive displacement hydrant with water discharge path from reservoir
OwnerHerbert W. Hoeptner, IIIinventor
Life of this patent
Estimating the term…
Abstract
A hydrant, comprising in combination an upper portion including a handle, a lower portion to be installed at least in part underground, the lower portion including a reservoir and a piston adapted to be displaced in the reservoir in response to handle manipulation, to displace water from a portion of the reservoir, a first conduit communicating with the interior of the reservoir to receive displaced water, the first conduit having an outlet located above ground to freely discharge water received in the conduit from said chamber, when water is displaced from the reservoir.
Claims18
A hydrant, comprising in combination:
- a) an upper portion including a handle,
- b) a lower portion to be installed at least in part underground,
- c) said lower portion including a reservoir and a piston adapted to be displaced downwardly in said reservoir in response to handle manipulation, to displace water from a portion of the reservoir,
- d) a first conduit communicating with the interior of the reservoir to receive displaced water,
- e) said first conduit having an outlet located above ground to freely discharge water received in the conduit from said chamber, when water is displaced from the reservoir,
- f) and including a stem operatively connected to the handle and to the piston to displace the piston downwardly when the handle is moved in one direction, and to displace the piston upwardly when the handle is moved in another direction.
3 more elements
A hydrant, comprising in combination:
- a) an upper portion including a handle,
- b) a lower portion to be installed at least in part underground,
- c) said lower portion including a reservoir and a piston adapted to be displaced downwardly in said reservoir in response to handle manipulation, to displace water from a portion of the reservoir,
- d) a first conduit communicating with the interior of the reservoir to receive displaced water,
- e) said first conduit having an outlet located above ground to freely discharge water received in the conduit from said chamber, when water is displaced from the reservoir,
- f) there being a second conduit having an entrance to receive water discharged from the first conduit, the second conduit having an outlet located underground,
- g) and wherein there is an air gap or backflow preventer located between the first conduit inlet and the second conduit entrance.
4 more elements
A hydrant, comprising in combination:
- a) an upper portion including a handle,
- b) a lower portion to be installed at least in part underground,
- c) said lower portion including a reservoir and a piston adapted to be displaced downwardly in said reservoir in response to handle manipulation, to displace water from a portion of the reservoir,
- d) a first conduit communicating with the interior of the reservoir to receive displaced water,
- e) said first conduit having an outlet located above ground to freely discharge water received in the conduit from said chamber, when water is displaced from the reservoir,
- f) and including a water receiver below said reservoir to receive water form an underground inlet, for flow into said reservoir interior, in response to manipulation of the handle.
3 more elements
A hydrant, comprising in combination:
- a) an upper portion including a handle,
- b) a lower portion to be installed at least in part underground,
- c) said lower portion including a reservoir and a piston adapted to be displaced downwardly in said reservoir in response to handle manipulation, to displace water from a portion of the reservoir,
- d) a first conduit communicating with the interior of the reservoir to receive displaced water,
- e) said first conduit having an outlet located above ground to freely discharge water received in the conduit from said chamber, when water is displaced from the reservoir,
- f) a second conduit having an entrance to receive water discharged from the first conduit, the second conduit having an outlet located underground,
- g) and wherein said second conduit outlet is located below the level of said reservoir.
4 more elements
A hydrant, comprising in combination:
- a) an upper portion including a handle,
- b) a lower portion to be installed at least in part underground,
- c) said lower portion including a reservoir and a piston adapted to be displaced downwardly in said reservoir in response to handle manipulation, to displace water from a portion of the reservoir,
- d) a first conduit communicating with the interior of the reservoir to receive displaced water,
- e) said first conduit having an outlet located above ground to freely discharge water received in the conduit from said chamber, when water is displaced from the reservoir,
- f) a second conduit having an entrance to receive water discharged from the first conduit, the second conduit having an outlet located underground,
- h) and wherein said first conduit extends upwardly within the second conduit at a location proximate said first conduit outlet.
4 more elements
A hydrant, comprising in combination:
- a) an upper portion including a handle,
- b) a lower portion to be installed at least in part underground,
- c) said lower portion including a reservoir and a piston adapted to be displaced downwardly in said reservoir in response to handle manipulation, to displace water from a portion of the reservoir,
- d) a first conduit communicating with the interior of the reservoir to receive displaced water,
- e) said first conduit having an outlet located above ground to freely discharge water received in the conduit from said chamber, when water is displaced from the reservoir,
- f) a second conduit having an entrance to receive water discharged form the first conduit, the second conduit having an outlet located underground,
- g) and wherein said second conduit entrance opens upwardly.
4 more elements
The method of operation of a hydrant that comprises:
- a) an upper portion including a handle,
- b) a lower portion to be installed at least in part underground,
- c) said lower portion including a reservoir and a piston adapted to be displaced downwardly in said reservoir in response to handle manipulation, to displace water from a portion of the reservoir,
- d) a first conduit communicating with the interior of the reservoir to receive displaced water,
- e) said first conduit having an air gap or back flow preventer outlet located above ground to freely discharge water received in the conduit from said chamber, when water is displaced from the reservoir,
- said method including
- f) locating said reservoir underground, and
- g) locating said air gap above ground.
- h) and providing a stem operatively connected to the handle and to the piston to displace the piston downwardly when the handle is moved in one direction, and to displace the piston upwardly when the handle is moved in another direction.
6 more elements
The method of operation of a hydrant that comprises:
- a) an upper portion including a handle,
- b) a lower portion to be installed at least in part underground,
- c) said lower portion including a reservoir and a piston adapted to be displaced downwardly in said reservoir in response to handle manipulation, to displace water from a portion of the reservoir,
- d) a first conduit communicating with the interior of the reservoir to receive displaced water,
- e) said first conduit having an air gap outlet located above ground to freely discharge water received in the conduit from said chamber, when water is displaced from the reservoir,
- said method including
- f) locating said reservoir underground, and
- g) locating said air gap above ground,
- h) and including providing a second conduit having an entrance to receive water discharged from the first conduit, the second conduit having an outlet located underground.
6 more elements
In a yard hydrant, the combination comprising:
- a) a cylinder, and a piston movable up and down in the cylinder in association with water flow into and out of a reservoir in the cylinder,
- b) tubular means associated with the piston and extending upwardly from the piston and downwardly from the piston, and movable therewith,
- c) supply means to deliver water from a source into the tubular means for flow upwardly therein and delivery above the piston and cylinder when the piston is in a first position relative to the cylinder,
- d) there being porting carried by said tubular means to drain water into the reservoir within the cylinder below the piston, when the piston is moved to a second position relative to the cylinder,
- e) an actuator above the piston and cylinder to effect displacement of the piston and between said positions,
- f) a first conduit communicating with the interior of the reservoir to receive displaced water,
- g) said first conduit having an outlet located above ground to freely discharge water received in the conduit from said chamber, when water is displaced from the reservoir.
4 more elements
Dependencies are inferred from the claim text.