US4754994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stub for connecting a hose and especially for coolant hoses in internal combustion engines
Assignee: Bayerische Motoren Werke AG
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Filing: 1986-08-05
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Granted: 1988-07-05
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Expires: 2006-08-05
Abstract
Abstract The invention relates to a stub support for connecting and supporting a hose connection wherein the stub has a rounded cross-section and is in configuration with peaks and valleys with steep tapering flanks facing the connection side of the stub and long tapering flanks facing the opposite direction.
Inventors
- 👤 Hans H. Melzer
- 👤 Athanasios Michassouridis
- 👤 Reiner Bachofner
- 👤 Achim Espitte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:01
CPC Classifications
F; F16; F16L; F16L33/00; F16L33/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
140 words
A stub for connection to coolant hoses of internal combustion engines, comprising a stub means having a rounded portion and a bore extending therethrough, having a central axis with a plurality of annual grooves defined by peaks and valleys along at least a length portion of the rounded portion, said grooves having an approximately saw-toothed shape profile, with steep tapering profile flanks facing away from a free end of the stub and connected to a long tapering, conical profile facing in the opposite direction, and wherein the depth of each annular groove of the saw-tooth shaped profile has a ratio of approximately 1:20 to 1:50 to the maximum outside diameter of the peaks on said stub and wherein the steep tapering profile flanks form an angle of approximately 45° to 75° with a central axis of the rounded stub portion.
Claim 2
Dependent Claim
140 words
A stub for connection to coolant hoses of internal combustion engines, comprising a stub means having a rounded portion and a bore extending therethrough, having a central axis with a plurality of annual grooves defined by peaks and valleys along at least a length portion of the rounded portion, said grooves having an approximately saw-toothed shape profile, with steep tapering profile flanks facing away from a free end of the stub and connected to a long tapering, conical profile facing in the opposite direction, and wherein the depth of each annular groove of the saw-tooth shaped profile has a ratio of approximately 1:20 to 1:50 to the maximum outside diameter of the peaks on said stub and wherein the steep tapering profile flanks form an angle of approximately 45° to 75° with a central axis of the rounded stub portion.
Claim 3
Dependent Claim
85 words
A stub according to claim 1 wherein the depth of each annual groove is 1 mm, and the long tapering conical profile flanks have an angle of approximately 30° with the central axis of the rounded stub portion and the groove peaks and valleys of the saw-tooth profile are rounded with a rounding radius of 1 mm which merge directly with one another on the steep tapering profile flanks which have an angle of approximately 60° with respect to the central axis of the stub.
References Cited (Backward Citations)
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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) | 1991-07-05 | 1992-01-04 | 1992-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-05 | 1996-01-04 | 1996-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-05 | 2000-01-04 | 2000-07-05 | $7700.00 | Window Closed / Lapsed |