US3901279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filling apparatus for pasty media, particularly for sausage meat
Assignee: Individual
•
Filing: 1974-01-30
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Granted: 1975-08-26
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Expires: 1994-01-30
Abstract
Abstract The apparatus includes a supply pipe adapted to connect a filling machine to a filling pump supplying the filling machine. A buffer device is connected to the supply pipe and comprises a cylinder with a piston movable therein. One chamber of the cylinder communicates with the supply pipe, and the other chamber of the cylinder is subjected to a pressure which may be substantially constant or which may be selectively varied between two different values. The filling machine operates intermittently while the filling pump operates substantially constantly. During stoppage of the filling machine, the material delivered to the supply pipe is supplied to the buffer device against a constant pressure, and the operation of the pump may be automatically interrupted. When the filling machine starts again, the constant pressure forces the pasty media from the buffer to the supply pipe for delivery to the filling machine, and the operation of the pump may be automatically restarted. Preferably, a higher constant pressure is supplied to the piston of the buffer cylinder when the buffer is delivering material to the supply pipe, whereas, at other times, the pressure on the piston is maintained at a lower constant value.
Inventors
- 👤 Karl Schnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:35
CPC Classifications
A; A22; A22C; A22C11/00; A22C11/02; A22C11/04; F; F04; F04B; F04B49/00; F04B49/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
178 words
In filling apparatus for pasty media, particularly for sausage meat, having a supply pipe adapted to connect a filling machine to a filling pump having a pump drive, the improvement comprising, in combination, a buffer device connected to said supply pipe to receive pasty media supplied in excess of the amount used; said buffer device comprising a cylinder and a piston reciprocable in said cylinder and dividing said cylinder into two chambers; one of said chambers being connected to said supply pipe; means applying a substantially constant force to said piston opposing movement of said piston away from said supply pipe; said means applying a substantially constant force to said piston comprising means applying a substantially constant fluid pressure to that side of said piston remote from the pasty medium; and at least one adjustable pressure reducing valve operable by said piston in accordance with the direction of movement thereof and regulating the fluid pressure applied to said piston to provide a relatively higher pressure during emptying of said cylinder and a relatively lower pressure during filling thereof.
Claim 2
Dependent Claim
178 words
In filling apparatus for pasty media, particularly for sausage meat, having a supply pipe adapted to connect a filling machine to a filling pump having a pump drive, the improvement comprising, in combination, a buffer device connected to said supply pipe to receive pasty media supplied in excess of the amount used; said buffer device comprising a cylinder and a piston reciprocable in said cylinder and dividing said cylinder into two chambers; one of said chambers being connected to said supply pipe; means applying a substantially constant force to said piston opposing movement of said piston away from said supply pipe; said means applying a substantially constant force to said piston comprising means applying a substantially constant fluid pressure to that side of said piston remote from the pasty medium; and at least one adjustable pressure reducing valve operable by said piston in accordance with the direction of movement thereof and regulating the fluid pressure applied to said piston to provide a relatively higher pressure during emptying of said cylinder and a relatively lower pressure during filling thereof.
Claim 3
Dependent Claim
157 words
In filling apparatus for pasty media, particularly for sausage meat, having a supply pipe adapted to connect a filling machine to a filling pump having a pump drive, the improvement comprising, in combination, a buffer device connected to said supply pipe to receive pasty media supplied in excess of the amount used; said buffer device comprising a cylinder and a piston rEciprocable in said cylinder and dividing said cylinder into two chambers; one of said chamber being connected to said supply pipe; means applying a substantially constant force to said piston opposing movement of said piston away from said supply pipe; said means applying a substantially constant force to said piston comprising means applying a substantially constant fluid pressure to that side of said piston remote from the pasty medium; and two selectively operable adjustable pressure reducing valves connected in parallel and operable alternately by said piston to regulate the application of fluid pressure to said piston.
Claim 4
Dependent Claim
157 words
In filling apparatus for pasty media, particularly for sausage meat, having a supply pipe adapted to connect a filling machine to a filling pump having a pump drive, the improvement comprising, in combination, a buffer device connected to said supply pipe to receive pasty media supplied in excess of the amount used; said buffer device comprising a cylinder and a piston rEciprocable in said cylinder and dividing said cylinder into two chambers; one of said chamber being connected to said supply pipe; means applying a substantially constant force to said piston opposing movement of said piston away from said supply pipe; said means applying a substantially constant force to said piston comprising means applying a substantially constant fluid pressure to that side of said piston remote from the pasty medium; and two selectively operable adjustable pressure reducing valves connected in parallel and operable alternately by said piston to regulate the application of fluid pressure to said piston.
Claim 5
Dependent Claim
30 words
In filling apparatus for pasty media, the improvement claimed in claim 2, in which said pressure reducing valves are electrically controllable; the fluid pressure medium being constituted by compressed air.
Claim 6
Dependent Claim
70 words
In filling apparatus for pasty media, the improvement claimed in claim 3, in which said pressure reducing valves are set to respective different pressure values; the valve with the lower pressure valve being operable to control the fluid pressure applied to said piston during filling of said cylinder, and the valve set to the higher pressure value controlling the fluid pressure supplied to said piston during emptying of said cylinder.
Claim 7
Dependent Claim
80 words
In filling apparatus for pasty media, the improvement claimed in claim 4, including a pump drive controlling element; said piston being connected to said controlling element to deactive said pump drive when said cylinder is substantially filled and to reactive said pump drive when said cylinder is substantially empty; said pressure reducing valves being solenoid-operated valves; said control element further constituting a reversing switch operable to selectively energize a respective pressure reducing valve during filling and emptying of said cylinder.
References Cited (Backward Citations)
US406981A
Cited
US3742556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |