US3722302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive having imbalanced rotatable shafts
Assignee: BWS Technologie GmbH
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Filing: 1971-08-18
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Granted: 1973-03-27
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Expires: 1991-08-18
Abstract
Abstract A housing accommodates a body of liquid and two imbalanced shafts which are journalled for rotation. One gear is mounted on one of the shafts for rotation therewith and another gear meshing with it is mounted on the other shaft for rotation relative thereto. A coupling arrangement is fast with the other shaft and normally engages with the gear thereon so that the shaft turns with the gear, but can be disengaged when the shaft reaches a certain angular position. Projections provided on the circumference of the shaft and entering into the body of liquid will quickly brake the rotation of the shaft when the latter becomes disconnected from its associated gear.
Inventors
- 👤 P Piatkowski
- 👤 M Birkholz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:55
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/10; B06B1/16; B06B1/161; B06B1/166; E; E02; E02D; E02D3/00; E02D3/02; E02D3/046; E02D3/074; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18344
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
123 words
An apparatus of the character described, comprising, a housing; a body of liquid accommodated in said housing; at least two imbalanced shafts journalled for rotation in said housing; gear means driven by one of said shafts; coupling means on the other of said shafts engaging said gear means and the other of said shafts and operative for disengaging from said gear means when said other shaft is in a predetermined angular position; and projections provided on the circumference of said other shaft adapted to enter into said body of liquid at least when said other shaft is in said angular position to thereby brake the rotation of said other shaft in automatic response to disengaging of said coupling means from said gear means.
Claim 2
Independent Claim
123 words
An apparatus of the character described, comprising, a housing; a body of liquid accommodated in said housing; at least two imbalanced shafts journalled for rotation in said housing; gear means driven by one of said shafts; coupling means on the other of said shafts engaging said gear means and the other of said shafts and operative for disengaging from said gear means when said other shaft is in a predetermined angular position; and projections provided on the circumference of said other shaft adapted to enter into said body of liquid at least when said other shaft is in said angular position to thereby brake the rotation of said other shaft in automatic response to disengaging of said coupling means from said gear means.
Claim 3
Dependent Claim
12 words
An apparatus as defined in claim 1, wherein said projections are vanes.
Claim 4
Dependent Claim
12 words
An apparatus as defined in claim 1, wherein said projections are blades.
Claim 5
Dependent Claim
43 words
An apparatus as defined in claim 1, wherein said gear means comprises at least two meshing gears one of which is fast with said one shaft and the other of which is journalled on said other shaft with freedom of rotation relative thereto.
Claim 6
Dependent Claim
51 words
An apparatus as defined in claim 4, said coupling means comprising a coupling element fast with said other shaft for rotation therewith, and being movable axially of said other shaft between two positions in one of which it engages and in the other of which it disengages from said other gear.
Claim 7
Dependent Claim
12 words
An apparatus as defined in claim 1, wherein said liquid is oil.
References Cited (Backward Citations)
US1917972A
Cited
US3505885A
Cited
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 |