Patent US3838997A successfully refreshed from Google Patents.
US3838997A
Expired / Lapsed
US
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Method and apparatus for the evaporative cooling tools of glass forming machines
Assignee: HEYE H
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Filing: 1972-10-05
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Granted: 1974-10-01
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Expires: 1992-10-05
Abstract
Abstract Method and apparatus for cooling tools, especially plungers and molds for glass forming machines, in which a cooling liquid is sprayed in atomized form through one or a plurality of nozzles against the tool surface to be cooled so that the liquid will evaporate upon contact with the surface to cool the latter. Spraying of liquid through the individual nozzles may be controlled either by the operator or automatically through sensing means sensing the temperature of the tool to be cooled.
Inventors
- 👤 K Becker
- 👤 L Schaar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:32
CPC Classifications
C; C03; C03B; C03B9/00; C03B9/30; C03B9/38; C03B9/3866; C03B11/00; C03B11/12; C03B11/125; C03B11/127; C03B9/3808; C03B9/3816; C03B9/3825; C03B9/3833; C03B9/3875
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
94 words
A METHD OF COOLING TOOLS, ESPECIALLY PLUNGERS AND MOLDS FOR GLASS FORMING MACHINES, BY USING THE HEAT OF EVAPORATION OF A COOLING LIQUID, COMPRISING THE STEPS OF PROVIDING A COOLING LIQUID UNDER PRESSURE; SPRAYING ONLY THE COOLING LIQUID UNDER PRESSURE WITHOUT A CARRIER GAS THROUGH A PLURALITY OF NOZZLES IN ATOMIZED FORM AGAINST DIFFERENT PORTIONS OF THE SURFACE OF THE TOOL TO BE COOLED SO THAT THE LIQUID WILL EVAPORATED UPON CONTACT OF SAID SURFACE TO COOL THE LATTER; AND CONTROLLING THE LIQUID PASSING THROUGH SOME OF SAID PLURALITY OF NOZZLE IN A MANNER
Claim 2
Dependent Claim
94 words
A METHD OF COOLING TOOLS, ESPECIALLY PLUNGERS AND MOLDS FOR GLASS FORMING MACHINES, BY USING THE HEAT OF EVAPORATION OF A COOLING LIQUID, COMPRISING THE STEPS OF PROVIDING A COOLING LIQUID UNDER PRESSURE; SPRAYING ONLY THE COOLING LIQUID UNDER PRESSURE WITHOUT A CARRIER GAS THROUGH A PLURALITY OF NOZZLES IN ATOMIZED FORM AGAINST DIFFERENT PORTIONS OF THE SURFACE OF THE TOOL TO BE COOLED SO THAT THE LIQUID WILL EVAPORATED UPON CONTACT OF SAID SURFACE TO COOL THE LATTER; AND CONTROLLING THE LIQUID PASSING THROUGH SOME OF SAID PLURALITY OF NOZZLE IN A MANNER
Claim 3
Dependent Claim
57 words
A method as defined in claim 1, wherein said controlling step comprises the step of regulating the amount of cooling liquid which passes per time unit through some of said nozzles in such a manner to be different and independent from the amount of cooling liquid which passes per time unit through the other of said nozzles.
Claim 4
Dependent Claim
50 words
A method as defined in claim 1, wherein said controlling step comprises the step of controlling the time during which cooling liquid is passed through some of said nozzles in such a manner to be different and independent from the time cooling liquid passes through the other of said nozzles.
Claim 5
Dependent Claim
30 words
A method as defined in claim 1, and including the step of heating the cooling liquid close to its boiling point prior to spraying the liquid against the tool surface.
Claim 6
Dependent Claim
13 words
A method as defined in claim 1, wherein the cooling liquid is water.
Claim 7
Dependent Claim
18 words
A method as defined in claim 1, wherein the cooling liquid is pretreated water including a wetting agent.
Claim 8
Dependent Claim
21 words
A method as defined in claim 1, wherein the cooling liquid is demineralized pure water including a detergent, methanol or ethanol.
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) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |