US5129684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed bulkhead fitting
Assignee: Total Containment Inc
•
Filing: 1991-11-05
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Granted: 1992-07-14
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Expires: 2011-11-05
Abstract
Abstract A reducer seal assembly for providing a fluid-tight through-wall fitting. The seal includes a substantially rigid tubular supporting member having a flange extending radially about one edge. The flange and the interior of the supporting member are covered with resilient material. The supporting member is externally threaded so that a nut may be joined thereto. The resilient member coating the flange of the support member may be curved to conform to a convex wall surface. The resilient member extends beyond the supporting member for connection about a conduit extending through the wall. The assembly is connectable to a wall by first inserting the support member through a wall from the exterior side and then the nut is applied to the threaded portion of the support member to the extent that the resilient coating has compressed to form a fluid-tight seal between the coating and the exterior wall surface. A hose clamp is applied about the resilient material extending through the support member for providing a compression fitting against the conduit.
Inventors
- 👤 James L. Lawrence
- 👤 Michael J. Agnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:07
CPC Classifications
F; F16; F16L; F16L5/00; F16L5/02; F16L5/06; F16L41/00; F16L41/08; F16L41/14; Y; Y10; Y10S; Y10S285/00; Y10S285/903
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
156 words
A reducer seal assembly for providing a fluid-tight through-wall fitting between a fluid impervious wall and a conduit passing through the wall, said assembly comprising: a) a substantially rigid supporting sleeve means including an externally threaded hollow portion, said hollow portion having a first open end and a second open end said first end adapted for engaging a wall surrounding an opening and said second end being sized to pass through the opening; b) said supporting sleeve means having a lip means for preventing passage of said sleeve means through the wall opening extending substantially perpendicularly outwardly from said first end of said supporting sleeve means; c) a resilient member formed about said lip means forming a wall-engaging fluid-tight surface and extending through the hollow portion and beyond said second end to form a clamping band for engaging the through-wall conduit; and, d) a threaded fastening means sized for threadably engaging said externally threaded hollow portion.
Claim 2
Dependent Claim
156 words
A reducer seal assembly for providing a fluid-tight through-wall fitting between a fluid impervious wall and a conduit passing through the wall, said assembly comprising: a) a substantially rigid supporting sleeve means including an externally threaded hollow portion, said hollow portion having a first open end and a second open end said first end adapted for engaging a wall surrounding an opening and said second end being sized to pass through the opening; b) said supporting sleeve means having a lip means for preventing passage of said sleeve means through the wall opening extending substantially perpendicularly outwardly from said first end of said supporting sleeve means; c) a resilient member formed about said lip means forming a wall-engaging fluid-tight surface and extending through the hollow portion and beyond said second end to form a clamping band for engaging the through-wall conduit; and, d) a threaded fastening means sized for threadably engaging said externally threaded hollow portion.
Claim 3
Dependent Claim
18 words
The reducer seal assembly as set forth in claim 1, wherein: a) said supporting sleeve means is tubular.
Claim 4
Dependent Claim
32 words
The reducer seal assembly as set forth in claim 1, wherein: a) said lip means extends entirely about the circumference of said first end and is completely covered by said resilient member.
Claim 5
Dependent Claim
19 words
The reducer seal assembly as set forth in claim 1, wherein: a) said resilient member is formed of polyetherurethane.
Claim 6
Dependent Claim
29 words
The reducer seal assembly as set forth in claim 1, wherein: a) said resilient member extends beyond said second end and has a reduced diameter beyond said second end.
Claim 7
Dependent Claim
27 words
The reducer seal assembly as set forth in claim 5, wherein: a) said resilient member includes a recess for receiving a hose clamp surrounding said reduced diameter.
Claim 8
Dependent Claim
41 words
The reducer seal assembly as set forth in claim 1, wherein: a) said first open end is of a diameter to receive a secondary containment pipe. b) said second open end is of a smaller diameter than said first open end.
Claim 9
Dependent Claim
25 words
The reducer seal assembly as set forth in claim 1, wherein: a) said resilient member forms a concave surface to conform to a convex wall.
Claim 10
Dependent Claim
25 words
The reducer seal assembly as set forth in claim 1, wherein: a) said supporting sleeve means and said threaded fastening means are formed of polypropylene.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-14 | 1996-01-13 | 1996-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-14 | 2000-01-13 | 2000-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-14 | 2004-01-13 | 2004-07-14 | $7700.00 | Window Closed / Lapsed |