Patent US3908537A successfully refreshed from Google Patents.
US3908537A
Expired / Lapsed
US
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Vacuumizing apparatus
Assignee: SPX Technologies Inc
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Filing: 1974-10-09
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Granted: 1975-09-30
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Expires: 1994-10-09
Abstract
Abstract An apparatus for removing air from meat emulsions or the like. The apparatus, which can be quickly disassembled for clean up purposes, includes a vacuum chamber having an annular, downwardly diverging wall which is mounted upon a transversely positioned, rectangular pumping chamber. The rectangular chamber fills with meat at a faster rate than a circular chamber of comparable size, and, in conjunction with the diverging wall, alleviates the tendency of the meat to form a bridge above the piston of the pumping chamber.
Inventors
- 👤 Miles S Bajcar
- 👤 Robert H Marshall
- 👤 William M Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:31
CPC Classifications
F; F04; F04B; F04B15/00; A; A22; A22C; A22C11/00; A22C11/02; F04B23/00; F04B23/04; F04B23/08; F04B23/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
150 words
In a vacuumizing apparatus, which is adapted to remove air from a meat emulsion, of the type comprising: a hopper for storing the meat emulsion, a vacuum chamber adapted to be connected to a source of vacuum, a conduit connecting said chamber and hopper, valve means in said conduit for controlling the meat flow to the vacuum chamber, a pumping chamber connected to said vacuum chamber, a stuffer connected to said pumping chamber with a check valve assembly therebetween and means for moving the meat pumped into the stuffer out of said stuffer, wherein the improvement comprises: said vacuum chamber having an annular, downwardly diverging wall and said pumping chamber having a generally rectangular configuration located transverse to and below said vacuum chamber for receiving meat from same, and a rectanular piston which is adapted to be connected to a source of power, mounted for reciprocation in said pumping chamber.
Claim 2
Dependent Claim
150 words
In a vacuumizing apparatus, which is adapted to remove air from a meat emulsion, of the type comprising: a hopper for storing the meat emulsion, a vacuum chamber adapted to be connected to a source of vacuum, a conduit connecting said chamber and hopper, valve means in said conduit for controlling the meat flow to the vacuum chamber, a pumping chamber connected to said vacuum chamber, a stuffer connected to said pumping chamber with a check valve assembly therebetween and means for moving the meat pumped into the stuffer out of said stuffer, wherein the improvement comprises: said vacuum chamber having an annular, downwardly diverging wall and said pumping chamber having a generally rectangular configuration located transverse to and below said vacuum chamber for receiving meat from same, and a rectanular piston which is adapted to be connected to a source of power, mounted for reciprocation in said pumping chamber.
Claim 3
Dependent Claim
20 words
The apparatus of claim 1 in which said vacuum chamber is in the form of a frustrum of a cone.
Claim 4
Dependent Claim
17 words
The apparatus of claim 2 further comprising sealing means between said vacuum chamber and said pumping chamber.
Claim 5
Dependent Claim
34 words
The apparatus of claim 3 further comprising a base therefor, a pair of spaced guide rods rigidly mounted on said base and a source of power for said piston which is a hydraulic cylinder.
Claim 6
Dependent Claim
30 words
The apparatus of claim 4 in which said pumping chamber is removably mounted on said rods, and further comprising means for preventing movement of said pumping chamber on said rods.
Claim 7
Dependent Claim
45 words
The apparatus of claim 5 in which said stuffer and check valve assembly are movably mounted on said rods, and further comprising a toggle link latch mounted on said base and adapted to move said stuffer and said check valve assembly toward said pumping chamber.
Claim 8
Dependent Claim
31 words
The apparatus of claim 6 in which said vacuum chamber is pivotally mounted on said pumping chamber and further comprising latch means for latching said vacuum chamber to said pumping chamber.
Claim 9
Dependent Claim
36 words
The apparatus of claim 7 in which the side of said pumping chamber adjacent said rectangular piston''s source of power is movably mounted on said rods and is adapted to be latched to said pumping chamber.
Claim 10
Dependent Claim
24 words
The apparatus of claim 8 further comprising quick disconnect means for disconnecting and connecting said conduit to said hopper and to said vacuum chamber.
Claim 11
Dependent Claim
23 words
The apparatus of claim 9 in which said vacuum chamber has a clear plastic top for view of the meat In the chamber.
References Cited (Backward Citations)
US3559556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |