Patent US3815253A successfully refreshed from Google Patents.
US3815253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling material from a kiln
Assignee: Kloeckner Humboldt Deutz AG
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Filing: 1973-05-03
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Granted: 1974-06-11
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Expires: 1993-05-03
Abstract
Abstract A method and mechanism for cooling granulate material which includes heating the material in a kiln and directing the material from a kiln into an upper inlet opening of a vertical cooling chamber with the material passing downwardly to flow out of a lower material discharge opening from the cooling chamber, and drawing air from the outside through the material at the discharge opening and forcing said air by an air pump into the material within the cooling chamber with the air flowing upwardly and passing into the kiln. A portion of the air directed into the material also flows downwardly to be recirculated.
Inventors
- 👤 H Deussner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:17
CPC Classifications
F; F27; F27D; F27D15/00; F27D15/02; F27D15/0286; F27B; F27B7/00; F27B7/20; F27B7/38; F27B7/383; F27D19/00; F27D2019/0006; F27D2019/0009
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
153 words
A mechanism for cooling granulate material comprising in combination: a vertical cooling chamber having an upper material inlet opening and a lower material discharge opening open to atmosphere through which material from the chamber discharges; an air pump means for supplying cooling air to the material in the chamber; an air discharge conduit for the air pump having an opening positioned in the interior of the chamber; and a closed air intake conduit for said air pump means having an intake opening at the lower end of the chamber positioned above said chamber opening to generate a zone of reduced pressure within said opening and positioned for receiving air from said material discharge opening and from the chamber, said air intake conduit supplying the complete supply of air for the pump discharge conduit, said chamber opening being sufficiently large to admit a flow of atmospheric air through the material into said conduit opening.
Claim 2
Dependent Claim
153 words
A mechanism for cooling granulate material comprising in combination: a vertical cooling chamber having an upper material inlet opening and a lower material discharge opening open to atmosphere through which material from the chamber discharges; an air pump means for supplying cooling air to the material in the chamber; an air discharge conduit for the air pump having an opening positioned in the interior of the chamber; and a closed air intake conduit for said air pump means having an intake opening at the lower end of the chamber positioned above said chamber opening to generate a zone of reduced pressure within said opening and positioned for receiving air from said material discharge opening and from the chamber, said air intake conduit supplying the complete supply of air for the pump discharge conduit, said chamber opening being sufficiently large to admit a flow of atmospheric air through the material into said conduit opening.
Claim 3
Dependent Claim
35 words
A mechanism for cooling granulate material constructed in accordance with claim 1: including a heating kiln connected to said material inlet; and means conducting the cooling air flowing upwardly through the material to the kiln.
Claim 4
Dependent Claim
27 words
A mechanism for cooling granulate material constructed in accordance with claim 1: including means for regulating the rate of flow of material from said material discharge opening.
Claim 5
Dependent Claim
37 words
A mechanism for cooling granulate material constructed in accordance with claim 3: wherein said means for regulating the flow of material includes a power driven rotary disk with the material flowing over the edges of the disk.
Claim 6
Dependent Claim
42 words
A mechanism for cooling granulate material constructed in accordance with claim 1: wherein said material discharge opening is annular in shape and positioned at the base of the cooling chamber; means for connecting said air intake to said annular material discharge opening.
Claim 7
Dependent Claim
25 words
A mechanism for cooling granulate material constructed in accordance with claim 1: including means for controlling the height of granulate material in said cooling chamber.
Claim 8
Dependent Claim
38 words
A mechanism for cooling granulate material constructed in accordance with claim 6: wherein said means for controlling the height includes a height sensing means connected to means for regulating the rate of flow through said material discharge opening.
Claim 9
Dependent Claim
42 words
A mechanism for cooling granulate material constructed in accordance with claim 1: including a pressure sensing means at the upper end of said cooling chamber connected to said air pump and regulating the discharge thereof as a function of cooling chamber pressure.
Claim 10
Dependent Claim
32 words
A mechanism for cooling granulate material constructed in accordance with claim 1: wherein a screen is positioned at the material discharge opening for controlling the flow of material from the cooling chamber.
Claim 11
Dependent Claim
129 words
A mechanism for cooling granulate material comprising in combination: a vertical cooling chamber having an upper material inlet opening and a lower material discharge opening; an air pump means for supplying cooling air to the material in the chamber; an air discharge for the air pump leading to the interior of the chamber; an air intake for said air pump means at the lower end of the chamber positioned below the air intake to generate a zone of reduced pressure within said opening and positioned for receiving air from said material discharge opening and from the chamber; a kiln for heating material and connected to deliver the material to said material inlet; and means for bypassing a portion of the air from said air pump means to said kiln.
Claim 12
Dependent Claim
129 words
A mechanism for cooling granulate material comprising in combination: a vertical cooling chamber having an upper material inlet opening and a lower material discharge opening; an air pump means for supplying cooling air to the material in the chamber; an air discharge for the air pump leading to the interior of the chamber; an air intake for said air pump means at the lower end of the chamber positioned below the air intake to generate a zone of reduced pressure within said opening and positioned for receiving air from said material discharge opening and from the chamber; a kiln for heating material and connected to deliver the material to said material inlet; and means for bypassing a portion of the air from said air pump means to said kiln.
Claim 13
Dependent Claim
29 words
A mechanism for cooling granulate material constructed in accordance with claim 1: including a second air pump means having an air discharge leading to the interior of the chamber.
Claim 14
Dependent Claim
31 words
A mechanism for cooling granulate material constructed in accordance with claim 1: wherein the traveling belt is positioned at the material discharge for carrying cooled material from the cooling chamber discharge.
Claim 15
Dependent Claim
29 words
A mechanism for cooling granulate material constructed in accordance with claim 1: and including an inclined vibratory gate for controlling the flow of material from the material discharge opening.
Claim 16
Independent Claim
56 words
A method for cooling granulate material comprising the steps: passing the material through a vertical cooling chamber having a material inlet at the upper end and a material discharge at the lower end, drawing atmospheric cooling air over the material solely through said material discharge and forcing said air into the material within the cooling chamber.
Claim 17
Independent Claim
56 words
A method for cooling granulate material comprising the steps: passing the material through a vertical cooling chamber having a material inlet at the upper end and a material discharge at the lower end, drawing atmospheric cooling air over the material solely through said material discharge and forcing said air into the material within the cooling chamber.
Claim 18
Dependent Claim
44 words
A method for cooling granulate material in accordance with the steps of claim 14: wherein a portion of the air directed into the chamber flows upwardly and a portion flows downwardly with the portion flowing downwardly being recirculated and redirected into the cooling chamber.
Claim 19
Dependent Claim
36 words
A method for cooling granulate material in accordance with the steps of claim 14: including directing the cooling air which flows through the material into a kiln positioned to discharge material into the cooling chamber inlet.
Claim 20
Dependent Claim
24 words
A method for cooling granulate material in accordance with the steps of claim 14: including maintaining a predetermined uniform pressure within the cooling chamber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |