US3775836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft seal method of manufacturing
Assignee: Gits Bros Mfg Co
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Filing: 1972-08-07
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Granted: 1973-12-04
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Expires: 1992-08-07
Abstract
Abstract A mechanical shaft seal having a primary face seal and a secondary internal seal wherein the seal line of the secondary seal is balanced in axial alignment with the primary face seal. The seal is a take-apart seal having a housing with a brazed-in internal radial step, the housing receiving a stepped adapter having a circumferential groove therein for the secondary seal and an axial end face adapted to hold the primary face seal. The adapter is axially movable in the housing and is urged out of the housing by a spring.
Inventors
- 👤 R Jackson
- 👤 D Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:23
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/14; B23K1/18; F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/38; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49702
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
234 words
The method of manufacturing a shaft seal having a radially stepped internal configuration which comprises the steps of: forming a shaft seal housing member having a ring configuration with an axially extending outer diameter wall and a radial wall intersecting with one end of the axial wall, providing a ring member having an outer diameter substantially equal to the inner diameter of the axially extending wall, the ring member having a radial wall, providing at least one circumferential groove in a surface of the said ring member, providing a brazing material in the said groove, inserting said ring member into the said housing member whereby the radial wall of the said ring member abuts a surface of the radial wall of the said housing member and the outer diameter of the said ring member abuts the inner diameter surface of the said axial wall with the said groove being in at least one of the abutting faces, subjecting the resultant assembly to heat sufficient to melt the brazing material to braze the said ring to the said housing member, at least one axial groove formed in the outer diameter of the said ring prior to insertion into the said housing, and the leg of an anti-rotation locking bar snuggly received in the said groove, the said antirotation locking bar inserted into the said groove prior to insertion of the ring into the said housing.
Claim 2
Independent Claim
234 words
The method of manufacturing a shaft seal having a radially stepped internal configuration which comprises the steps of: forming a shaft seal housing member having a ring configuration with an axially extending outer diameter wall and a radial wall intersecting with one end of the axial wall, providing a ring member having an outer diameter substantially equal to the inner diameter of the axially extending wall, the ring member having a radial wall, providing at least one circumferential groove in a surface of the said ring member, providing a brazing material in the said groove, inserting said ring member into the said housing member whereby the radial wall of the said ring member abuts a surface of the radial wall of the said housing member and the outer diameter of the said ring member abuts the inner diameter surface of the said axial wall with the said groove being in at least one of the abutting faces, subjecting the resultant assembly to heat sufficient to melt the brazing material to braze the said ring to the said housing member, at least one axial groove formed in the outer diameter of the said ring prior to insertion into the said housing, and the leg of an anti-rotation locking bar snuggly received in the said groove, the said antirotation locking bar inserted into the said groove prior to insertion of the ring into the said housing.
Claim 3
Independent Claim
266 words
The method of manufacturing a shaft seal having a radially stepped internal configuration which comprises the steps of: forming a shaft seal housing member having a ring configuration with an axially extending outer diameter wall and a radial wall intersecting with one end of the axial wall, providing a ring member having an outer diameter substantially equal to the inner diameter of the axially extending wall, the ring member having a radial wall, providing at least one circumferential groove in a surface of the said ring member, providing a brazing material in the said groove, inserting said ring member into the said housing member whereby the radial wall of the said ring member abuts a surface of the radial wall of the said housing member and the outer diameter of the said ring member abuts the inner diameter surface of the said axial wall with the said groove being in at least one of the abutting faces, subjecting the resultant assembly to heat sufficient to melt the brazing material to braze the said ring to the said housing member at least one axial grooVe formed in the outer diameter of the ring prior to insertion into the housing, the base leg of a T-shaped bar snuggly received in the groove with the cross head of the T bar axially spaced from the said ring, the said T bar inserted into the groove prior to insertion of the ring into the housing, the circumferential groove positioned such that the melting of the brazing material therein will braze the T bar to the ring and to the housing.
Claim 4
Independent Claim
266 words
The method of manufacturing a shaft seal having a radially stepped internal configuration which comprises the steps of: forming a shaft seal housing member having a ring configuration with an axially extending outer diameter wall and a radial wall intersecting with one end of the axial wall, providing a ring member having an outer diameter substantially equal to the inner diameter of the axially extending wall, the ring member having a radial wall, providing at least one circumferential groove in a surface of the said ring member, providing a brazing material in the said groove, inserting said ring member into the said housing member whereby the radial wall of the said ring member abuts a surface of the radial wall of the said housing member and the outer diameter of the said ring member abuts the inner diameter surface of the said axial wall with the said groove being in at least one of the abutting faces, subjecting the resultant assembly to heat sufficient to melt the brazing material to braze the said ring to the said housing member at least one axial grooVe formed in the outer diameter of the ring prior to insertion into the housing, the base leg of a T-shaped bar snuggly received in the groove with the cross head of the T bar axially spaced from the said ring, the said T bar inserted into the groove prior to insertion of the ring into the housing, the circumferential groove positioned such that the melting of the brazing material therein will braze the T bar to the ring and to the housing.
References Cited (Backward Citations)
US2050728A
Cited
US2040092A
Cited
US2440298A
Cited
US2706328A
Cited
US3109659A
Cited
US3319968A
Cited
US3552752A
Cited
US3647227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |