Patent US3994631A successfully refreshed from Google Patents.
US3994631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump and pump manifold assembly with adjustable ball valve
Assignee: Individual
•
Filing: 1974-08-20
•
Granted: 1976-11-30
•
Expires: 1994-08-20
Abstract
Abstract A piston or diaphram and a pump manifold assembly having an adjustable ball valve is disclosed. The manifold comprises first and second flanged chambers for mounting to the pump, a conduit or passageway which joins the two chambers and ball valves positioned in and near the first flanged chamber. The ball valves allow the manifold to pump materials of various sizes without the problems associated with the prior art. As specifically disclosed, the distance the ball may travel in the first chamber is controlled by at least one shaped pin positioned in the area of the valve which is easily removable without the need for disconnecting the manifold from the pump or without removal of the balls from the valves. By use of the pump and pump manifold assembly of the present invention, a continuous flow of material of varying sizes can be achieved without substantial surge. In addition, the assembly is easily cleaned, repaired and modified without the need for complete removal from the pump or expensive equipment.
Inventors
- 👤 William L. Hostetter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:30
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/1002; F04B53/101; F04B15/00; F04B15/02; F04B7/00; Y; Y10; Y10S; Y10S417/00; Y10S417/90
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
150 words
A concrete pump manifold assembly comprising a first chamber having a concrete inlet, a concrete outlet and a means for attaching to and communicating with a pump; a valve seat in said first chamber adjacent said inlet; a ball in said first first chamber to inhibit flow out said concrete inlet when said ball is against said valve seat; a first adjustment means, said ball being movable between a first position against said valve seat and a second position against said first adjustment means and displaced from said valve seat, said adjustment means being a means for changing the location of said second position with respect to said first position; and a second adjustment means, said ball also being movable to a third position against said second adjustment means, said second adjustment means being a means for adjusting the location of said third position with respect to said first position.
Claim 2
Dependent Claim
150 words
A concrete pump manifold assembly comprising a first chamber having a concrete inlet, a concrete outlet and a means for attaching to and communicating with a pump; a valve seat in said first chamber adjacent said inlet; a ball in said first first chamber to inhibit flow out said concrete inlet when said ball is against said valve seat; a first adjustment means, said ball being movable between a first position against said valve seat and a second position against said first adjustment means and displaced from said valve seat, said adjustment means being a means for changing the location of said second position with respect to said first position; and a second adjustment means, said ball also being movable to a third position against said second adjustment means, said second adjustment means being a means for adjusting the location of said third position with respect to said first position.
Claim 3
Dependent Claim
24 words
The manifold assembly of claim 1 wherein one of said first and second adjustment means limits the motion of said ball toward said pump.
Claim 4
Dependent Claim
50 words
The pump manifold of claim 1 wherein said first adjustment means is a member supported by said manifold means and rotatable about an axis generally perpendicular to the flow direction through said valve seat to provide surfaces at adjustable positions for contact by said ball to define said second position.
Claim 5
Dependent Claim
52 words
The pump manifold of claim 3 wherein said first adjustment means comprises a pin passing through said manifold means, said pin having a central portion and side sections of substantially uniform diameter, said central portion being radially offset with respect to the axis of said side sections to define a cam surface.
Claim 6
Dependent Claim
61 words
The pump manifold of claim 4 wherein said central section of said pin is of a predetermined length in relation to said side sections and said manifold means dimensions so that upon withdrawing said pin one end of said pin becomes free of one wall of said manifold means before said central section engages the opposite wall of said manifold means.
Claim 7
Dependent Claim
202 words
A concrete pump manifold assembly comprising: a first generally spherical chamber having a concrete inlet, a concrete outlet, and a means for attaching to and communicating with a pump, the axes of said inlet, said outlet and said means for attaching to and communicating with a pump being directed toward the center of said generally spherical chamber; a valve seat in said first chamber adjacent said inlet; a ball in said first chamber to inhibit flow out said concrete inlet when said ball is against said valve seat; a first adjustment means, said ball being movable between a first position against said valve seat and a second position against said first adjustment means and displaced from said valve seat, said adjustment means being a means for changing the location of said second position with respect to said first position; and a second chamber having an outlet, and an inlet coupled to said outlet of said first chamber, a valve seat between said first and second chambers, a ball in said second chamber, and an adjustment means in said second chamber to adjust the limit of travel of said last named ball away from said valve seat between said first and second chamber.
Claim 8
Dependent Claim
202 words
A concrete pump manifold assembly comprising: a first generally spherical chamber having a concrete inlet, a concrete outlet, and a means for attaching to and communicating with a pump, the axes of said inlet, said outlet and said means for attaching to and communicating with a pump being directed toward the center of said generally spherical chamber; a valve seat in said first chamber adjacent said inlet; a ball in said first chamber to inhibit flow out said concrete inlet when said ball is against said valve seat; a first adjustment means, said ball being movable between a first position against said valve seat and a second position against said first adjustment means and displaced from said valve seat, said adjustment means being a means for changing the location of said second position with respect to said first position; and a second chamber having an outlet, and an inlet coupled to said outlet of said first chamber, a valve seat between said first and second chambers, a ball in said second chamber, and an adjustment means in said second chamber to adjust the limit of travel of said last named ball away from said valve seat between said first and second chamber.
Claim 9
Dependent Claim
23 words
The manifold of claim 6 wherein said second chamber is generally spherically shaped adjacent said valve seat between said first and second chambers.
Claim 10
Dependent Claim
40 words
The manifold of claim 7 wherein said first adjustment means comprises means for adjusting said ball travel in said first chamber in the direction of said outlet and means for adjusting said ball travel in the direction of said pump.
Claim 11
Dependent Claim
50 words
The pump manifold of claim 6 wherein each said adjustment means is a member supported by said manifold means and rotatable about an axis generally perpendicular to the flow direction through said valve seat to provide surfaces at adjustable positions for contact by said ball to define said second position.
Claim 12
Dependent Claim
52 words
The pump manifold of claim 9 wherein each said adjustment means comprises a pin passing through said manifold means, said pin having a central portion and side sections of substantially uniform diameter, said central portion being radially offset with respect to the axis of said side sections to define a cam surface.
Claim 13
Dependent Claim
61 words
The pump manifold of claim 10 wherein said central section of said pin is of a predetermined length in relation to said side sections and said manifold means dimensions so that upon withdrawing said pin one end of said pin becomes free of one wall of said manifold means before said central section engages the opposite wall of said manifold means.
References Cited (Backward Citations)
US2733664A
Cited
CA860035A
Cited
US932153A
Cited
US2007888A
Cited
US2311229A
Cited
US2367893A
Cited
US2448104A
Cited
US2609756A
Cited
US2745349A
Cited
US3172363A
Cited
US3104619A
Cited
US3597114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-30 | 1980-05-31 | 1980-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-30 | 1984-05-31 | 1984-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-30 | 1988-05-31 | 1988-11-30 | $7700.00 | Window Closed / Lapsed |