Patent US5492343A successfully refreshed from Google Patents.
US5492343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasket assembly
Assignee: Federal Mogul World Wide LLC
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Filing: 1994-03-04
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Granted: 1996-02-20
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Expires: 2014-03-04
Abstract
Abstract A gasket includes an internal stiffener wire which maintains the semi-rigid shape of the gasket while it is in storage or during the process of its installation between two workpieces. Rigid compression limiter rings are attached to the wire by a tack weld or by semi-open loops formed in the wire. The loops mate with peripheral grooves in the rings. Each ring is secured within a side opening in each loop with a sliding or snap-fit connection. The rings may be loosely held within the loops to allow the rings to self align themselves with positioning pins provided in an injection mold which subsequently forms the gasket material around the wire and rings.
Inventors
- 👤 Stanley N. Smith
- 👤 David M. Toth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:07
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/12; F16J15/121; F16J15/127
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
83 words
A sealing gasket, comprising: a metal stiffener wire formed into a predetermined configuration; a plurality of rigid compression limiter members secured to said stiffener wire at spaced points therealong; and an elastomeric sealing body enveloping said stiffener wire, wherein each compression limiter member has a side surface and a peripheral groove formed in said side surface and said stiffener wire comprises an engagement section extending within said peripheral groove and wherein said stiffener wire has a resilient snap-fit connection with said peripheral groove.
Claim 2
Dependent Claim
83 words
A sealing gasket, comprising: a metal stiffener wire formed into a predetermined configuration; a plurality of rigid compression limiter members secured to said stiffener wire at spaced points therealong; and an elastomeric sealing body enveloping said stiffener wire, wherein each compression limiter member has a side surface and a peripheral groove formed in said side surface and said stiffener wire comprises an engagement section extending within said peripheral groove and wherein said stiffener wire has a resilient snap-fit connection with said peripheral groove.
Claim 3
Dependent Claim
19 words
The sealing gasket of claim 1, wherein each said engagement section of said stiffener wire comprises a C-shaped loop.
Claim 4
Dependent Claim
15 words
The sealing gasket of claim 1, wherein each said engagement section comprises a U-shaped loop.
Claim 5
Dependent Claim
110 words
A sealing gasket, comprising: a metal stiffener wire formed into a predetermined configuration; a plurality of rigid compression limiter members secured to said stiffener wire at spaced points therealong; and an elastomeric sealing body enveloping said stiffener wire wherein each compression limiter member has a side surface and a peripheral groove formed in said side surface and said stiffener wire comprises an engagement section extending within said peripheral groove, and wherein said peripheral groove in each said compression limiter member has a depth dimension slightly greater than the corresponding dimension of said wire engagement section to allow limited adjustability of said compression limiter member with respect to said stiffener wire.
Claim 6
Dependent Claim
110 words
A sealing gasket, comprising: a metal stiffener wire formed into a predetermined configuration; a plurality of rigid compression limiter members secured to said stiffener wire at spaced points therealong; and an elastomeric sealing body enveloping said stiffener wire wherein each compression limiter member has a side surface and a peripheral groove formed in said side surface and said stiffener wire comprises an engagement section extending within said peripheral groove, and wherein said peripheral groove in each said compression limiter member has a depth dimension slightly greater than the corresponding dimension of said wire engagement section to allow limited adjustability of said compression limiter member with respect to said stiffener wire.
Claim 7
Dependent Claim
78 words
A sealing gasket, comprising: a metal stiffener wire formed into a predetermined configuration defining a plurality of looped portions spaced along said wire; a plurality of rigid compression limiter rings respectively secured to said looped portions of said stiffener wire; each ring comprising a side surface having a peripheral groove formed therein, and each of said looped portions respectively extending within one said groove; and an elastomeric sealing body molded to said stiffener wire and to said rings.
Claim 8
Dependent Claim
78 words
A sealing gasket, comprising: a metal stiffener wire formed into a predetermined configuration defining a plurality of looped portions spaced along said wire; a plurality of rigid compression limiter rings respectively secured to said looped portions of said stiffener wire; each ring comprising a side surface having a peripheral groove formed therein, and each of said looped portions respectively extending within one said groove; and an elastomeric sealing body molded to said stiffener wire and to said rings.
Claim 9
Dependent Claim
72 words
A sealing gasket, comprising: a metal stiffener wire formed into a predetermined configuration; a plurality of rigid compression limiter members secured to said stiffener wire, said compression limiter members comprising a flanged portion having an underside; and a weld interconnecting said compression limiter members to said stiffener wires, said weld extending between said underside of said flanged portion and said stiffener wire; and an elastomeric sealing body molded to said stiffener wire.
Claim 10
Dependent Claim
72 words
A sealing gasket, comprising: a metal stiffener wire formed into a predetermined configuration; a plurality of rigid compression limiter members secured to said stiffener wire, said compression limiter members comprising a flanged portion having an underside; and a weld interconnecting said compression limiter members to said stiffener wires, said weld extending between said underside of said flanged portion and said stiffener wire; and an elastomeric sealing body molded to said stiffener wire.
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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) | 1999-02-19 | 1999-08-21 | 2000-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-02-19 | 2003-08-21 | 2004-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-02-19 | 2007-08-21 | 2008-02-20 | $7700.00 | Window Closed / Lapsed |