US3916724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venting apparatus for a transmission
Assignee: Buro Patent AG
•
Filing: 1973-10-09
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Granted: 1975-11-04
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Expires: 1993-10-09
Abstract
Abstract A venting apparatus for a transmission with a venting channel which communicates an internal compartment of the transmission housing which is located above the level of the lubricant with the outside. The venting channel is arranged in a tubular-shaped probe which extends such an extent into the transmission housing that its end, which is provided with a drip or drain flange, in each position of the transmission is located above the lubricant level.
Inventors
- 👤 Hans Joachim Muller
- 👤 Gerhard Sendner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:26
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/02; F16H57/027; B; B62; B62D; B62D55/00; B62D55/08; B62D55/12; B62D55/125; B62D55/13; F16N; F16N21/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86292; Y10T137/8634; Y10T137/86348; Y10T137/86372; Y10T74/00; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
98 words
The combination with a transmission incorporating a transmission housing containing lubricant of a vent apparatus communicating with said transmission housing, said transmission housing including an internal compartment located above the level of the lubricant therein, said vent apparatus comprising a tubular-shaped probe having arranged therein a vent channel continuously communicating said internal compartment with the atmosphere, said tubular-shaped probe having an end equipped with a drip flange and extending such an extent into the transmission housing that said end equipped with said drip flange is located above the level of the lubricant in all positions of the transmission.
Claim 2
Dependent Claim
98 words
The combination with a transmission incorporating a transmission housing containing lubricant of a vent apparatus communicating with said transmission housing, said transmission housing including an internal compartment located above the level of the lubricant therein, said vent apparatus comprising a tubular-shaped probe having arranged therein a vent channel continuously communicating said internal compartment with the atmosphere, said tubular-shaped probe having an end equipped with a drip flange and extending such an extent into the transmission housing that said end equipped with said drip flange is located above the level of the lubricant in all positions of the transmission.
Claim 3
Dependent Claim
19 words
The combination as defined in claim 1, wherein the drip flange possesses a knife-edge like construction along its periphery.
Claim 4
Dependent Claim
33 words
The combination as defined in claim 1, wherein the drip flange is inclined with Respect to the plane of the flange at an end face facing away from the end of the probe.
Claim 5
Dependent Claim
20 words
The combination as defined in claim 3, wherein the angle of inclination of the drip flange amounts to about 45*.
Claim 6
Dependent Claim
33 words
The combination as defined in claim 1, wherein an end face of the flange which is located at the end of the probe is inclined with respect to the plane of the flange.
Claim 7
Dependent Claim
30 words
The combination as defined in claim 5, wherein said end face of the flange is inclined with respect to the plane of the probe at an angle of about 15*.
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) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |