GB697069A - Apparatus for evacuating hollow articles - Google Patents
Apparatus for evacuating hollow articlesInfo
- Publication number
- GB697069A GB697069A GB2890651A GB2890651A GB697069A GB 697069 A GB697069 A GB 697069A GB 2890651 A GB2890651 A GB 2890651A GB 2890651 A GB2890651 A GB 2890651A GB 697069 A GB697069 A GB 697069A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- line
- ball
- chamber
- shelf
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000000284 resting effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
- F16K15/048—Ball features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/38—Exhausting, degassing, filling, or cleaning vessels
- H01J9/385—Exhausting vessels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7723—Safety cut-off requiring reset
- Y10T137/7726—Responsive to change in rate of flow
- Y10T137/7727—Excessive flow cut-off
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Vacuum Packaging (AREA)
- Drying Of Solid Materials (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
697,069. Valves. SYLVANIA ELECTRIC PRODUCTS, Inc. Dec. 10, 1951 [Dec. 19, 1950], No. 28906/51. Class 135 [Also in Group XI] Apparatus for evacuating hollow articles, e.g., electric bulbs, comprises a valve 11, Fig. 4, arranged between a pipe 12 connected to the article and a vacuum line 28, and having a sealing member 19 normally resting on a shelf 18 in a chamber 16 and adapted in response to an abnormal flow of gas, e.g., due to a leak in the article, to seal the vacuum ' line from the chamber. A bulb 9, Fig. 2, registers with an exhaust head 6 connected to the valve 11 on a rotating turret 1. The valve passes under magnets 34 which lift the magnetic ball 19 or a rubber ball filled with metal filings from a seat 37 to the top of the chamber while a rough vacuum pump is coupled to the line 28. When the valve 11 passes from beneath the magnets, the ball drops on to the shelf and a fine exhaust is applied to the line 28. If now a leak develops in the tube 9, the rush of air through the connection 12 blows the ball up the shelf until it drops on the seat 37.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20164650 US2672266A (en) | 1950-12-19 | 1950-12-19 | Vacuum leak check valve |
Publications (1)
Publication Number | Publication Date |
---|---|
GB697069A true GB697069A (en) | 1953-09-16 |
Family
ID=22746673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2890651A Expired GB697069A (en) | 1950-12-19 | 1951-12-10 | Apparatus for evacuating hollow articles |
Country Status (2)
Country | Link |
---|---|
US (1) | US2672266A (en) |
GB (1) | GB697069A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1099652B (en) * | 1958-10-08 | 1961-02-16 | Telefunken Gmbh | Reducing head that can be used in a melting machine or other device for reducing the surface area of the tube pins of electrical discharge tubes |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2951513A (en) * | 1958-10-03 | 1960-09-06 | Westinghouse Electric Corp | Leak-check valve |
KR100876318B1 (en) * | 2001-09-06 | 2008-12-31 | 가부시키가이샤 아루박 | Operation method of vacuum exhaust device and vacuum exhaust device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1518461A (en) * | 1923-06-18 | 1924-12-09 | Arthur B Brayton | Automatic cut-off |
US1933322A (en) * | 1930-02-03 | 1933-10-31 | Westinghouse Lamp Co | Mechanical vacuum leak detector |
US2254905A (en) * | 1938-11-25 | 1941-09-02 | Westinghouse Electric & Mfg Co | Exhaust machine and method of protecting exhaust systems |
US2565298A (en) * | 1946-02-07 | 1951-08-21 | Gen Electric | Evacuating and gas charging apparatus with movable support and vacuum pump carried thereon |
-
1950
- 1950-12-19 US US20164650 patent/US2672266A/en not_active Expired - Lifetime
-
1951
- 1951-12-10 GB GB2890651A patent/GB697069A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1099652B (en) * | 1958-10-08 | 1961-02-16 | Telefunken Gmbh | Reducing head that can be used in a melting machine or other device for reducing the surface area of the tube pins of electrical discharge tubes |
Also Published As
Publication number | Publication date |
---|---|
US2672266A (en) | 1954-03-16 |
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