US3722762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oiler spout
Assignee: Century Tool Co Inc
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Filing: 1970-10-28
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Granted: 1973-03-27
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Expires: 1990-10-28
Abstract
Abstract An oiler spout for use in electrical installations comprising a metal inner tube surrounded by a plastic outer shell. The exposed outer end of the tube is formed into a curved tip. The inner end extends into the spout base but not in contact therewith. The shell has a threaded inner portion mounted on the base so that the metal tip of the spout is insulated from the oiler body.
Inventors
- 👤 B Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:32
CPC Classifications
F; F16; F16N; F16N3/00; F16N3/02; F16N3/04; F16N3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
220 words
In an oiler having a base section defining an internally threaded spout attachment portion having a first tapered sealing surface, a two-piece spout assembly comprising an elongated inner metal tube and an outer shell formed with an elongated bore adapted to receive said tube and fabricated of an electrically insulative material, each end of said tube extending longitudinally outwardly relative to the adjacent ends of said shell, whereby said tube is substantially enclosed by said shell and is supported coaxially thereof, the inner end of said shell being formed with an externally threaded mounting portion and a second tapered sealing surface of complementary shape with respect to and adapted for detachable sealing engagement with the attachment portion of the oiler base section, said mounting portion being spaced radially outwardly from the outer periphery of the inner end of said tube whereupon engagement of said mounting portion of said shell with said attachment portion of said base section locates one end of said tube in radial clearance relative to the inner periphery of said spout attachment portion, whereby a fluid tight seal is provided between said mounting portion of said shell and said attachment section of said base, and said inner end of said tube is spaced away from the adjacent part of said base section to prevent direct contact therebetween.
Claim 2
Dependent Claim
220 words
In an oiler having a base section defining an internally threaded spout attachment portion having a first tapered sealing surface, a two-piece spout assembly comprising an elongated inner metal tube and an outer shell formed with an elongated bore adapted to receive said tube and fabricated of an electrically insulative material, each end of said tube extending longitudinally outwardly relative to the adjacent ends of said shell, whereby said tube is substantially enclosed by said shell and is supported coaxially thereof, the inner end of said shell being formed with an externally threaded mounting portion and a second tapered sealing surface of complementary shape with respect to and adapted for detachable sealing engagement with the attachment portion of the oiler base section, said mounting portion being spaced radially outwardly from the outer periphery of the inner end of said tube whereupon engagement of said mounting portion of said shell with said attachment portion of said base section locates one end of said tube in radial clearance relative to the inner periphery of said spout attachment portion, whereby a fluid tight seal is provided between said mounting portion of said shell and said attachment section of said base, and said inner end of said tube is spaced away from the adjacent part of said base section to prevent direct contact therebetween.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |