US3644110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass-making tool and method of use
Assignee: Hermann Heye KG
•
Filing: 1970-03-05
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Granted: 1972-02-22
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Expires: 1990-03-05
Abstract
Abstract In a glass-making method and a tool involved in carrying out the method, the tool is subjected to heating. The invention provides for controlling the temperature of the tool by providing the latter with at least one internal chamber and accommodating therein a vaporizable volatile heat-exchange medium which is evaporable in the chamber in one region thereof as a result of the heating of the tool, moves to another cooler region where it becomes condensed, and is returned to the one region by capillary means accommodated in the chamber.
Inventors
- 👤 Alfred Sendt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:47
CPC Classifications
C; C03; C03B; C03B11/00; C03B11/12; C03B11/125; C03B11/127; C03B9/00; C03B9/30; C03B9/38; C03B9/3808; C03B9/3816; C03B9/3825; C03B9/3875; F; F28; F28D; F28D15/00; F28D15/02; F28D15/0266; F28D15/04
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
90 words
A tool for contacting hot glass comprising, in combination, wall means enclosing at least one internal chamber and being subject to external heating by contact with molten glass; a supply of vaporizable volatile heat-exchange medium provided in said chamber and being evaporable by heat in at least one relatively hot first region of said chamber and condensable in at least one relatively cool second region of said chamber; and capillary means for transporting by capillary action condensed heat-exchange medium from said second region to said first region of said chamber.
Claim 2
Dependent Claim
90 words
A tool for contacting hot glass comprising, in combination, wall means enclosing at least one internal chamber and being subject to external heating by contact with molten glass; a supply of vaporizable volatile heat-exchange medium provided in said chamber and being evaporable by heat in at least one relatively hot first region of said chamber and condensable in at least one relatively cool second region of said chamber; and capillary means for transporting by capillary action condensed heat-exchange medium from said second region to said first region of said chamber.
Claim 3
Dependent Claim
94 words
In a method of working hot glass wherein a hollow tool is exposed to molten glass, the steps of confining in the interior of a chamber of said tool a supply of volatile vaporizable heat-exchange medium; subjecting at least one first region of said chamber to an elevated temperature at which said heat-exchange medium evaporates and maintaining at least one second region of said chamber at a lower temperature at which the thus-evaporated heat-exchange medium undergoes condensation; and conveying the thus-condensed heat-exchange medium from said second region to said first region by capillary action.
Claim 4
Dependent Claim
94 words
In a method of working hot glass wherein a hollow tool is exposed to molten glass, the steps of confining in the interior of a chamber of said tool a supply of volatile vaporizable heat-exchange medium; subjecting at least one first region of said chamber to an elevated temperature at which said heat-exchange medium evaporates and maintaining at least one second region of said chamber at a lower temperature at which the thus-evaporated heat-exchange medium undergoes condensation; and conveying the thus-condensed heat-exchange medium from said second region to said first region by capillary action.
Claim 5
Dependent Claim
43 words
A tool as defined in claim 1, said wall means having an outer surface; and further comprising means for controlling the temperature of said outer surface at least in the vicinity of said second region so as to facilitate condensation of said medium.
Claim 6
Dependent Claim
18 words
A tool as defined in claim 3; further comprising regulating means for regulating operation of said control means.
Claim 7
Dependent Claim
28 words
A tool as defined in claim 3; further comprising regulating means for regulating operation of said control means as a function of the temperature of said wall means.
Claim 8
Dependent Claim
30 words
A tool as defined in claim 1, said wall means having an inner surface bounding said chamber, and said capillary means comprising a capillary structure provided on said inner surface.
Claim 9
Dependent Claim
36 words
A tool as defined in claim 1, said wall means constituting a discrete capsule; and said tool further comprising a tool body; and connecting means connecting said capsule with said tool body in thermally conductive relationship.
Claim 10
Dependent Claim
74 words
A tool as defined in claim 7; further comprising a pair of coaxial hollow cylinders arranged in said chamber and having juxtaposed major surfaces defining a clearance with one another, said cylinders having spaced ends; connecting means connecting said ends with one another while leaving unobstructed the central passage of the inner one of said cylinders; and wherein said capillary means comprises a capillary structure provided in said clearance on said juxtaposed major surfaces.
Claim 11
Dependent Claim
23 words
A tool as defined in claim 7, said tool body having a hollow dimensioned to at least in part accommodate said caPsule therein.
Claim 12
Dependent Claim
22 words
A tool as defined in claim 7, said connecting means being solder which is solid at the operating temperature of said tool.
Claim 13
Dependent Claim
22 words
A tool as defined in claim 7, said connecting means being solder which is liquid at the operating temperature of said tool.
Claim 14
Dependent Claim
69 words
A tool as defined in claim 7, said capsule having an opening; further comprising at least one additional capsule similar to the first-mentioned capsule and also having an opening; and fluidtight conduit means also accommodating capillary means and having a pair of apertures in sealing relationship with the respective openings and through which said capillary means in said conduit means is connected with said capillary means in said capsules.
Claim 15
Dependent Claim
21 words
A tool as defined in claim 7; further comprising means associated with said discrete capsule for controlling the temperature means thereof.
Claim 16
Dependent Claim
16 words
A tool as defined in claim 13, wherein said control means is arranged within said capsule.
Claim 17
Dependent Claim
16 words
A tool as defined in claim 13, wherein said control means is arranged without said capsule.
Claim 18
Dependent Claim
22 words
A tool as defined in claim 13; further comprising thermally conductive means interposed between and connecting said capsule and said control means.
Claim 19
Dependent Claim
40 words
A tool as defined in claim 1, said capillary means comprising at least two elements of capillary material located within said chamber but spaced from one another; and bridging portions of said capillary material connecting said elements with one another.
Claim 20
Dependent Claim
85 words
A tool as defined in claim 1, said tool being a ram having a hollow interior which constitutes said chamber, and said wall means comprising a wall portion recessed inwardly into said chamber and having an inner side and an outer side; cooling means for cooling said outer side; and wherein said capillary means comprises a first element of capillary material on an inner surface bounding said chamber, and a second element of capillary material on said inner side and connected with said first element.
Claim 21
Dependent Claim
33 words
A tool as defined in claim 1, said tool being a mold element comprising a double wall one of which constitutes said wall means, and which define with one another said internal chamber.
Claim 22
Dependent Claim
43 words
A tool as defined in claim 19; further comprising an additional mold element similar to the first-mentioned mold element; fluidtight flexible conduit means communicating with the internal chambers of both of said mold elements; and additional capillary means accommodated in said conduit means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |