US4699293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enclosure seal
Assignee: Allen Bradley Co LLC
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Filing: 1985-12-20
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Granted: 1987-10-13
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Expires: 2005-12-20
Abstract
Abstract A seal for an enclosure of electrical equipment which is clamped between sealing surfaces on the enclosure base and the enclosure cover. The seal includes a cavity of a preferred hour-glass configuration and resiliently retains a resilient seal member of a preferred triangular configuration. The outer wall portions of the cavity permit expansion of the resilient seal member when the cover is forced against the base to provide a seal around the outer periphery of the enclosure.
Inventors
- 👤 Robert A. Duchrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:19
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/26; H02B1/28; H02B1/46
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
181 words
An enclosure for an electrical device, the combination comprising: a base having a bottom and one or more upright walls which define a compartment for receiving the electrical device; a first sealing surface formed on said upright wall and surrounding said compartment; a cover having a second sealing surface which opposes and contacts said first sealing surface when said cover is positioned in place over said cavity; a seal disposed between said opposing first and second sealing surfaces, said seal also including a cavity disposed in one of said base or cover, said cavity defined by an nner portion and an outer portion and constructed and arranged for both retaining a resilient seal member therein and permitting compressive expansion thereof, said seal also including said resilient seal member having at least one portion for extending from said cavity and for sealing engagement with one of said sealing surfaces when said cover is fastened in place over said compartment said seal member constructed and arranged to be guided by said outer portion and self orientated by said inner portion of said cavity.
Claim 2
Dependent Claim
181 words
An enclosure for an electrical device, the combination comprising: a base having a bottom and one or more upright walls which define a compartment for receiving the electrical device; a first sealing surface formed on said upright wall and surrounding said compartment; a cover having a second sealing surface which opposes and contacts said first sealing surface when said cover is positioned in place over said cavity; a seal disposed between said opposing first and second sealing surfaces, said seal also including a cavity disposed in one of said base or cover, said cavity defined by an nner portion and an outer portion and constructed and arranged for both retaining a resilient seal member therein and permitting compressive expansion thereof, said seal also including said resilient seal member having at least one portion for extending from said cavity and for sealing engagement with one of said sealing surfaces when said cover is fastened in place over said compartment said seal member constructed and arranged to be guided by said outer portion and self orientated by said inner portion of said cavity.
Claim 3
Dependent Claim
41 words
The enclosure as defined in claim 1 wherein said cavity has opposing inwardly extending and diverging wall portions terminating in an end wall as well as outwardly extending and diverging wall portions resulting in a constricting portion between said wall portions.
Claim 4
Dependent Claim
15 words
The enclosure as defined in claim 1 wherein said seal is disposed in said cover.
Claim 5
Dependent Claim
23 words
The enclosure as recited in claim 3 in which said sealing surfaces are flat and said seal is positioned adjacent said sealing surfaces.
Claim 6
Dependent Claim
30 words
The enclosure as recited in claim 1 in which said first and second sealing surfaces and said seal are positioned in a flanged portion surrounding said base and said cover.
Claim 7
Dependent Claim
17 words
The enclosure as recited in claim 2 wherein said cavity has a configuration which is substantially hourglass.
Claim 8
Dependent Claim
27 words
The enclosure as recited in claim 6 wherein said inwardly extending wall portions of said cavity have a larger wall surface than said outwardly extending wall portions.
Claim 9
Dependent Claim
21 words
The enclosure as recited in claim 7 wherein said resilient seal member is of a generally equilateral triangular configuration in cross-section.
Claim 10
Dependent Claim
31 words
The enclosure as recited in claim 8 wherein said base and said cover are composed of a metallic material and said resilient seal member is composed of a solid elastomeric material.
Claim 11
Dependent Claim
124 words
A seal for an assembly having two elements to be joined at mating surfaces with said mating surfaces being relatively flat comprsing: a cavity defined by an inner portion and an outer portion disposed in one of said mating surfaces, said cavity constructed and arranged for both retaining a resilient seal member therein and permitting compressive expansion thereof, said seal also including said resilient seal member having at least one portion for sealing engagement with one of said mating surfaces when said relatively flat mating surfaces are in contact, said seal member being of a substantially solid configuration in cross section so that it is self orientated and self retained in said inner portion and compressively expanded in said outer portion of said cavity.
Claim 12
Dependent Claim
124 words
A seal for an assembly having two elements to be joined at mating surfaces with said mating surfaces being relatively flat comprsing: a cavity defined by an inner portion and an outer portion disposed in one of said mating surfaces, said cavity constructed and arranged for both retaining a resilient seal member therein and permitting compressive expansion thereof, said seal also including said resilient seal member having at least one portion for sealing engagement with one of said mating surfaces when said relatively flat mating surfaces are in contact, said seal member being of a substantially solid configuration in cross section so that it is self orientated and self retained in said inner portion and compressively expanded in said outer portion of said cavity.
Claim 13
Dependent Claim
41 words
The seal as recited in claim 10 wherein said cavity has opposing inwardly extending and diverging wall portions terminating in an end wall as well as outwardly extending and diverging wall portions resulting in a constricting portion between said wall portions.
Claim 14
Dependent Claim
16 words
The seal as recited in claim 10 wherein said seal is disposed in a cover member.
Claim 15
Dependent Claim
17 words
The seal as recited in claim 10 wherein said cavity has a configuration which is substantially hourglass.
Claim 16
Dependent Claim
29 words
The seal as recited in claim 13 wherein said resilient seal member is of a generally equilateral triangular configuration in cross section and is composed of an elastomeric material.
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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) | 1990-10-12 | 1991-04-13 | 1991-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-12 | 1995-04-13 | 1995-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-12 | 1999-04-13 | 1999-10-13 | $7700.00 | Window Closed / Lapsed |