US4580003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetic terminal assembly
Assignee: Emerson Electric Co
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Filing: 1985-05-10
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Granted: 1986-04-01
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Expires: 2005-05-10
Abstract
Abstract A hermetic terminal assembly wherein a radially extending flange on a current conducting pin that extends through a hole defined by a cover member adapted to be secured to an opening in a motor housing is surrounded by an electrically insulating sleeve with the inner axial extremity of the sleeve extending at an axial location relative the pin substantially beyond the inner face of the radially extending flange to provide an extended tortuous path between the flange on the pin and the cover member, the pin having an aperture extending therein on the inner end thereof within the compass of the sleeve, adjacent the inner face of the flange to provide a fuse-like area.
Inventors
- 👤 Benjamin Bowsky
- 👤 Glenn A. Honkomp
- 👤 Larry G. Burrows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:27
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/22; H02K5/225; H01; H01B; H01B17/00; H01B17/26; H01B17/30; H01B17/303; H01B17/305; H02K11/00; H02K11/20; H02K11/25; Y; Y10; Y10S; Y10S439/00; Y10S439/933; Y10S439/935
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
223 words
A hermetic terminal assembly adapted to be hermetically secured to an opening in a motor unit housing comprising: a cover member having at least one hole therein; a current conducting pin extending through said hole, said pin having an outer end to extend externally of said housing to receive an electrical connection to a current source and an inner end to extend within said housing to receive an electrical connection to a motor disposed in said housing, said inner end of said pin having a flange extending generally radially therefrom; said flange having an inner face facing said inner end of said pin, a seal bonding said pin to the inside surface defining said cover member hole; and a hollow electrically insulating sleeve surrounding said pin and said flange extending therefrom with the inner axial extremity of said sleeve extending at an axial location relative said pin substantially beyond the axial location of the inner face of said flange and the opposite axial extremity of said sleeve being bonded to said seal to provide an extended tortuous path between said flange on said pin and said cover member to minimize the possibility of electrical arcing therebetween, said inner end of said pin having an aperture extending therein spaced adjacent to the inner face of said flange to form, in effect, a fuse-like area.
Claim 2
Dependent Claim
223 words
A hermetic terminal assembly adapted to be hermetically secured to an opening in a motor unit housing comprising: a cover member having at least one hole therein; a current conducting pin extending through said hole, said pin having an outer end to extend externally of said housing to receive an electrical connection to a current source and an inner end to extend within said housing to receive an electrical connection to a motor disposed in said housing, said inner end of said pin having a flange extending generally radially therefrom; said flange having an inner face facing said inner end of said pin, a seal bonding said pin to the inside surface defining said cover member hole; and a hollow electrically insulating sleeve surrounding said pin and said flange extending therefrom with the inner axial extremity of said sleeve extending at an axial location relative said pin substantially beyond the axial location of the inner face of said flange and the opposite axial extremity of said sleeve being bonded to said seal to provide an extended tortuous path between said flange on said pin and said cover member to minimize the possibility of electrical arcing therebetween, said inner end of said pin having an aperture extending therein spaced adjacent to the inner face of said flange to form, in effect, a fuse-like area.
Claim 3
Dependent Claim
20 words
The apparatus of claim 1, said aperture extending completely through said pin normal to the longitudinal axis of said pin.
Claim 4
Dependent Claim
29 words
The apparatus of claim 1, said inner axial extremity of said insulating sleeve extending at an axial location relative said pin substantially beyond the inner edge of said aperture.
Claim 5
Dependent Claim
41 words
The apparatus of claim 1, said pin having an inner core of highly conductive material and a surrounding outer jacket of less conductive material, said aperture having a breadth less than said inner core to permit current flow during normal operations.
Claim 6
Dependent Claim
91 words
The apparatus of claim 1, said aperture being in the shape of a cylinder extending completely through said pin with the longitudinal axis thereof normal to the longitudinal axis of said pin, said inner axial extremity of said insulating sleeve extending at an axial location relative said pin substantially beyond the inner edge of said cylindrical aperture, said pin having an inner core of copper and a surrounding steel jacket, said cylindrical aperture having a diameter less than the diameter of said copper core to permit current flow during normal operations.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |