Patent US3125857A successfully refreshed from Google Patents.
US3125857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic torque converter
Assignee: —
•
Filing: —
•
Granted: 1964-03-24
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Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:34
CPC Classifications
F; F16; F16H; F16H41/00; F16H41/24; F16H41/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
361 words
AN HYDRAULIC TORQUE CONVERTER HAVING A GENERALLY PEAR-SHAPED TORUS PROVIDED WITH A BLADED OUTFLOW IMPELLER, A BLADED INFLOW TURBINE AND A SUBSTANTIALLY AXIAL FLOW, BLADED STATOR, THE PORTION OF THE TORUS BETWEEN THE IMPELLER OUTLET AND TURBINE INLET BEING UNBLADED, THE SHAPE OF THE TORUS BEING RELATED BY REFERENCE TO AN ENDLESS, PEARSHAPED AND CONSTRUCTION, MEDIAN DESIGN LINE WHICH IS BOUNDED BY A CONSTRUCTION RECTANGLE WHOSE SHORTER SIDES ARE PARALLEL TO THE AXIS OF THE CONVERTER AND TANGENT TO THE OUTERMOST AND INNERMOST POINTS OF THE DESIGN LINE AT APPROXIMATE DISTANCES OF .95R AND .46R, RESPECTIVELY, FROM THE CONVERTER AXIS AND WHOSE LONGER SIDES ARE NORMAL TO THE CONVERTER AXIS WITH A SPACING OF APPROXIMATELY .36R AND TANGENT, RESPECTIVELY, TO AXIALLY OUTERMOST POINTS OF THE DESIGN LINE WHEREIN R IS THE OUTER RADIUS OF THE TORUS, THE DESIGN LINE PASSING THROUGH A SERIES OF DESIGN POINTS A TO J, INCLUSIVE, DETERMINED BY A SYSTEM OF XAND Y-COORDINATES BEGINNING WITH THE RADIALLY OUTERMOST DESIGN POINT A OF TANGENCY OF THE RECTANGLE WITH THE DESIGN LINE AND PROCEEDING IN SUCCESSION THROUGH THE OTHER DESIGN POINTS IN A DIRECTION OPPOSITE TO THAT OF THE TOROIDAL FLOW, THE COORDINATE SYSTEM BEING RELATED TO THE CONVERTER AXIS AND A REFERENCE, CONSTRUCTION BASE LINE PERPENDICULAR THERETO AND PASSING MIDWAY BETWEEN THE LONGER SIDES OF THE RECTANGLE AS X- AND Y-AXES, RESPECTIVELY, THE COORDINATES HAVING VALUES FOR DESIGN POINT A OF 0R AND .95R, FOR DESIGN POINT B OF +.09R AND .91R, FOR DESIGN POINT C OF +. 18R AND .63R, FOR DESIGN POINT D OF +.17R AND .56R, FOR DESIGN POINT E OF +10R AND .48R, FOR DESIGN POINT F OF 0R AND .46R, FOR DESIGN POINT G OF -.12R AND .50R, FOR DESIGN POINT H OF -.17R AND .56R, FOR DESIGN POINT I OF -.18R AND .63R, AND FOR DESIGN POINT J OF -.09R, AND .91R, POSITIVE AND NEGATIVE VALUES BEING MEASURED IN OPPOSITE DIRECTIONS, RESPECTIVELY, FROM THE BASE LINE, AND THE INNER AND OUTER WALLS OF THE TORUS BEING TANGENT TO AN INFINITE NUMBER OF CIRCLES WHOSE CENTERS LIE ON THE MEDIAN DESIGN LINE WITH THE DIAMETER D OF EACH CIRCLE BEING EXPRESSED AS FOLLOWS:
Claim 2
Dependent Claim
361 words
AN HYDRAULIC TORQUE CONVERTER HAVING A GENERALLY PEAR-SHAPED TORUS PROVIDED WITH A BLADED OUTFLOW IMPELLER, A BLADED INFLOW TURBINE AND A SUBSTANTIALLY AXIAL FLOW, BLADED STATOR, THE PORTION OF THE TORUS BETWEEN THE IMPELLER OUTLET AND TURBINE INLET BEING UNBLADED, THE SHAPE OF THE TORUS BEING RELATED BY REFERENCE TO AN ENDLESS, PEARSHAPED AND CONSTRUCTION, MEDIAN DESIGN LINE WHICH IS BOUNDED BY A CONSTRUCTION RECTANGLE WHOSE SHORTER SIDES ARE PARALLEL TO THE AXIS OF THE CONVERTER AND TANGENT TO THE OUTERMOST AND INNERMOST POINTS OF THE DESIGN LINE AT APPROXIMATE DISTANCES OF .95R AND .46R, RESPECTIVELY, FROM THE CONVERTER AXIS AND WHOSE LONGER SIDES ARE NORMAL TO THE CONVERTER AXIS WITH A SPACING OF APPROXIMATELY .36R AND TANGENT, RESPECTIVELY, TO AXIALLY OUTERMOST POINTS OF THE DESIGN LINE WHEREIN R IS THE OUTER RADIUS OF THE TORUS, THE DESIGN LINE PASSING THROUGH A SERIES OF DESIGN POINTS A TO J, INCLUSIVE, DETERMINED BY A SYSTEM OF XAND Y-COORDINATES BEGINNING WITH THE RADIALLY OUTERMOST DESIGN POINT A OF TANGENCY OF THE RECTANGLE WITH THE DESIGN LINE AND PROCEEDING IN SUCCESSION THROUGH THE OTHER DESIGN POINTS IN A DIRECTION OPPOSITE TO THAT OF THE TOROIDAL FLOW, THE COORDINATE SYSTEM BEING RELATED TO THE CONVERTER AXIS AND A REFERENCE, CONSTRUCTION BASE LINE PERPENDICULAR THERETO AND PASSING MIDWAY BETWEEN THE LONGER SIDES OF THE RECTANGLE AS X- AND Y-AXES, RESPECTIVELY, THE COORDINATES HAVING VALUES FOR DESIGN POINT A OF 0R AND .95R, FOR DESIGN POINT B OF +.09R AND .91R, FOR DESIGN POINT C OF +. 18R AND .63R, FOR DESIGN POINT D OF +.17R AND .56R, FOR DESIGN POINT E OF +10R AND .48R, FOR DESIGN POINT F OF 0R AND .46R, FOR DESIGN POINT G OF -.12R AND .50R, FOR DESIGN POINT H OF -.17R AND .56R, FOR DESIGN POINT I OF -.18R AND .63R, AND FOR DESIGN POINT J OF -.09R, AND .91R, POSITIVE AND NEGATIVE VALUES BEING MEASURED IN OPPOSITE DIRECTIONS, RESPECTIVELY, FROM THE BASE LINE, AND THE INNER AND OUTER WALLS OF THE TORUS BEING TANGENT TO AN INFINITE NUMBER OF CIRCLES WHOSE CENTERS LIE ON THE MEDIAN DESIGN LINE WITH THE DIAMETER D OF EACH CIRCLE BEING EXPRESSED AS FOLLOWS:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-24 | 1967-09-23 | 1968-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-24 | 1971-09-23 | 1972-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-24 | 1975-09-23 | 1976-03-24 | $7700.00 | Window Closed / Lapsed |