Patent US3992148A successfully refreshed from Google Patents.
US3992148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat treatment of particulate solid material
Assignee: SPX Flow Technology Crawley Ltd
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Filing: 1975-02-20
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Granted: 1976-11-16
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Expires: 1995-02-20
Abstract
Abstract Apparatus for preparing sterilized particulate solid materials, comprising a sterilizing vessel mounted on hollow trunnions for rotation about a generally horizontal axis and shaped so as to provide a tumbling action on the solid material therein as it rotates, a fluid inlet leading via one of the hollow trunnions, a discharge valve at a point remote from the axis of rotation leading into a solids discharge duct passing out via one of the hollow trunnions, and a supply line for cleaning and sterilizing fluids passing via one of the hollow trunnions, whereby the discharge duct may be cleaned and sterilized in preparation for discharge while the vessel is rotating.
Inventors
- 👤 David Teignmouth Shore
- 👤 Hugh Eddowes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:44
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/28; A; A23; A23B; A23B2/00; A23B2/40; A23B2/405; B01J3/00; B01J3/04; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00044; B01J2208/00106; B01J2208/00168; B01J2208/00212
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
154 words
In apparatus for preparing sterilized particulate solid material, comprising a sterilized vessel mounted on a pair of hollow trunnions for rotation about a generally horizontal axis and shaped so as to provide a tumbling action on particulate solid material therein as it rotates, a fluid inlet leading via one of said hollow trunnions, a source of cleaning and sterilizing fluids: the improvement that the vessel includes a discharge valve connected to the vessel at a point remote from the axis of rotation leading into a solids discharge duct passing out of the vessel via one of the hollow trunnions, and a supply line connected to said source and in fluid flow communication with the discharge valve, said supply line passing via one of said hollow trunnions for conveying cleaning and sterilizing fluids to the discharge duct, whereby the discharge duct may be cleaned and sterilized in preparation for discharge while the vessel is rotating.
Claim 2
Dependent Claim
154 words
In apparatus for preparing sterilized particulate solid material, comprising a sterilized vessel mounted on a pair of hollow trunnions for rotation about a generally horizontal axis and shaped so as to provide a tumbling action on particulate solid material therein as it rotates, a fluid inlet leading via one of said hollow trunnions, a source of cleaning and sterilizing fluids: the improvement that the vessel includes a discharge valve connected to the vessel at a point remote from the axis of rotation leading into a solids discharge duct passing out of the vessel via one of the hollow trunnions, and a supply line connected to said source and in fluid flow communication with the discharge valve, said supply line passing via one of said hollow trunnions for conveying cleaning and sterilizing fluids to the discharge duct, whereby the discharge duct may be cleaned and sterilized in preparation for discharge while the vessel is rotating.
Claim 3
Dependent Claim
27 words
Apparatus as claimed in claim 1, in which the supply line for cleaning and sterilizing fluids and the discharge duct pass via one of said hollow trunnions.
Claim 4
Dependent Claim
12 words
Apparatus as claimed in claim 1, comprising a jacket on the vessel.
Claim 5
Dependent Claim
17 words
Apparatus as claimed in claim 1, in which the fluid inlet is stationary within the hollow trunnion.
Claim 6
Dependent Claim
27 words
Apparatus as claimed in claim 4, in which the fluid inlet consists of a pipe cranked upwardly into the head space near the top of the vessel.
Claim 7
Dependent Claim
24 words
Apparatus as claimed in claim 1, further comprising a vent and fluid discharge pipe led in via the same trunnion as the fluid inlet.
Claim 8
Dependent Claim
29 words
Apparatus as claimed in claim 6, in which the vent and fluid discharge pipe is normally static in operation but is adjustable between vent and fluid discharge functional positions.
Claim 9
Dependent Claim
43 words
Apparatus as claimed in claim 1, in which the vessel consists of a pair of conical portions each having an apex and joined at their bases by a short linking portion in the form of a hollow body having an axis of rotation.
Claim 10
Dependent Claim
33 words
Apparatus as claimed in claim 8, in which the axis of rotation of the vessel is diametrical of the linking portion and the discharge valve is at the apex of one conical portion.
Claim 11
Dependent Claim
20 words
Apparatus as claimed in claim 9, in which the apex of another conical portion has an access and loading door.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-16 | 1980-05-17 | 1980-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-16 | 1984-05-17 | 1984-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-16 | 1988-05-17 | 1988-11-16 | $7700.00 | Window Closed / Lapsed |