GB2305222A - Seals for bakable vacuum systems - Google Patents

Seals for bakable vacuum systems

Info

Publication number
GB2305222A
GB2305222A GB9701634A GB9701634A GB2305222A GB 2305222 A GB2305222 A GB 2305222A GB 9701634 A GB9701634 A GB 9701634A GB 9701634 A GB9701634 A GB 9701634A GB 2305222 A GB2305222 A GB 2305222A
Authority
GB
United Kingdom
Prior art keywords
sealing means
sealing
bakable
seals
vacuum systems
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.)
Granted
Application number
GB9701634A
Other versions
GB2305222B (en
GB9701634D0 (en
Inventor
Paul Richard Stonestreet
John Michael Walls
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
APPLIED MICROSCOPY Ltd
Original Assignee
APPLIED MICROSCOPY Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by APPLIED MICROSCOPY Ltd filed Critical APPLIED MICROSCOPY Ltd
Publication of GB9701634D0 publication Critical patent/GB9701634D0/en
Publication of GB2305222A publication Critical patent/GB2305222A/en
Application granted granted Critical
Publication of GB2305222B publication Critical patent/GB2305222B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
    • 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
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
    • F16K51/02—Other details not peculiar to particular types of valves or cut-off apparatus specially adapted for high-vacuum installations
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)
  • Details Of Valves (AREA)

Abstract

The invention relates to a sealing means, articles incorporating the sealing means and apparatus in which said sealing means are used to advantage. The sealing means incorporates at least a first sealing element having at least an outer surface of polymeric material and a second sealing element having at least an outer surface of elastomeric material. This allows the sealing means to be baked for use in high vacuum or ultra high vacuum environments, without damage to the seal and in a closed position. Furthermore, the force required to be applied to create the seal between the sealing elements in such that automated actuation means can be used to operate the sealing means.
GB9701634A 1994-06-23 1995-06-23 Seals for bakable vacuum systems Expired - Fee Related GB2305222B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9412635A GB9412635D0 (en) 1994-06-23 1994-06-23 Seals for bakeable vacuum systems
PCT/GB1995/001492 WO1996000355A1 (en) 1994-06-23 1995-06-23 Seals for bakable vacuum systems

Publications (3)

Publication Number Publication Date
GB9701634D0 GB9701634D0 (en) 1997-03-19
GB2305222A true GB2305222A (en) 1997-04-02
GB2305222B GB2305222B (en) 1997-11-26

Family

ID=10757223

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9412635A Pending GB9412635D0 (en) 1994-06-23 1994-06-23 Seals for bakeable vacuum systems
GB9701634A Expired - Fee Related GB2305222B (en) 1994-06-23 1995-06-23 Seals for bakable vacuum systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9412635A Pending GB9412635D0 (en) 1994-06-23 1994-06-23 Seals for bakeable vacuum systems

Country Status (3)

Country Link
AU (1) AU2748695A (en)
GB (2) GB9412635D0 (en)
WO (1) WO1996000355A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0294224A2 (en) * 1987-06-05 1988-12-07 FISONS plc Bakeable vacuum systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0294224A2 (en) * 1987-06-05 1988-12-07 FISONS plc Bakeable vacuum systems

Also Published As

Publication number Publication date
AU2748695A (en) 1996-01-19
WO1996000355A1 (en) 1996-01-04
GB2305222B (en) 1997-11-26
GB9701634D0 (en) 1997-03-19
GB9412635D0 (en) 1994-08-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050623