CA2393653A1 - Improved bulkhead fitting for underground sump - Google Patents

Improved bulkhead fitting for underground sump Download PDF

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Publication number
CA2393653A1
CA2393653A1 CA002393653A CA2393653A CA2393653A1 CA 2393653 A1 CA2393653 A1 CA 2393653A1 CA 002393653 A CA002393653 A CA 002393653A CA 2393653 A CA2393653 A CA 2393653A CA 2393653 A1 CA2393653 A1 CA 2393653A1
Authority
CA
Canada
Prior art keywords
sump
exterior
entry fitting
bulkhead fitting
seal
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
CA002393653A
Other languages
French (fr)
Other versions
CA2393653C (en
Inventor
Lawrence R. Blasch
Frank G. Lamping
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.)
Delaware Capital Formation Inc
Original Assignee
Individual
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
Priority claimed from US08/729,784 external-priority patent/US6224115B1/en
Application filed by Individual filed Critical Individual
Publication of CA2393653A1 publication Critical patent/CA2393653A1/en
Application granted granted Critical
Publication of CA2393653C publication Critical patent/CA2393653C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Landscapes

  • Lining And Supports For Tunnels (AREA)
  • Gasket Seals (AREA)

Abstract

An entry fitting having a cylindrical portion (36) and a conical portion (40) including a seal disposed about the body of the entry fitting. An axial displacement member (16) urges the seal along the conical portion to achieve a relatively wide range of sealing force. The entry fitting can include a shield (60) positioned on the exterior of a sump to provide an access space for displacement of the entry fitting toward the exterior of the sump to allow removal and replacement of the seal without first having to remove backfill from the exterior of the sump.
CA002393653A 1996-10-08 1997-10-08 Improved bulkhead fitting for underground sump Expired - Fee Related CA2393653C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/729,784 1996-10-08
US08/729,784 US6224115B1 (en) 1996-10-08 1996-10-08 Bulkhead fitting for underground sump
CA002239181A CA2239181C (en) 1996-10-08 1997-10-08 Improved bulkhead fitting for underground sump

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002239181A Division CA2239181C (en) 1996-10-08 1997-10-08 Improved bulkhead fitting for underground sump

Publications (2)

Publication Number Publication Date
CA2393653A1 true CA2393653A1 (en) 1998-04-16
CA2393653C CA2393653C (en) 2003-12-30

Family

ID=25680261

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002393653A Expired - Fee Related CA2393653C (en) 1996-10-08 1997-10-08 Improved bulkhead fitting for underground sump

Country Status (1)

Country Link
CA (1) CA2393653C (en)

Also Published As

Publication number Publication date
CA2393653C (en) 2003-12-30

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Legal Events

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EEER Examination request
MKLA Lapsed