View All Documents & Correspondence
A compact and inexpensive fluid pressure operated torque amplifier and a power steering system incorporating such torque amplifier to eliminate the need for a separate return fluid conduit The power steering system (10) includes a fluid pressure operated torque amplifier (12), a reduction gear unit (16) disposed within a cavity (53) of a transmission casing (14), and a steering linkage (20) for wheels. The torque amplifier includes a control valve assembly (24) disposed in a housing (22), a torque amplifier unit (32), a high torque drive shaft (58) and an output shaft (54) The output shaft of the torque amplifier serves as an input member of the reduction gear unit. The torque amplifier also includes a pressurized fluid inlet (78) provided in the housing and a return fluid outlet (61) provided in the output shaft (54), both the inlet and outlet being in communication with the cavity of the transmission casing.
Notices, Deadlines & Correspondence
Patent Information
Applicants
EATON CORPORATION
Inventors
1. MASAYOSHI YAMAGUCHI
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 503-cal-1998-granted-translated copy of priority document.pdf | 2011-10-06 |
| 2 | 503-cal-1998-granted-specification.pdf | 2011-10-06 |
| 3 | 503-cal-1998-granted-reply to examination report.pdf | 2011-10-06 |
| 4 | 503-cal-1998-granted-priority document.pdf | 2011-10-06 |
| 5 | 503-cal-1998-granted-letter patent.pdf | 2011-10-06 |
| 6 | 503-cal-1998-granted-gpa.pdf | 2011-10-06 |
| 7 | 503-cal-1998-granted-form 5.pdf | 2011-10-06 |
| 8 | 503-cal-1998-granted-form 3.pdf | 2011-10-06 |
| 9 | 503-cal-1998-granted-form 2.pdf | 2011-10-06 |
| 10 | 503-cal-1998-granted-form 1.pdf | 2011-10-06 |
| 11 | 503-cal-1998-granted-drawings.pdf | 2011-10-06 |
| 12 | 503-cal-1998-granted-description (complete).pdf | 2011-10-06 |
| 13 | 503-cal-1998-granted-correspondence.pdf | 2011-10-06 |
| 14 | 503-cal-1998-granted-claims.pdf | 2011-10-06 |
| 15 | 503-cal-1998-granted-abstract.pdf | 2011-10-06 |
| 16 | 00503-cal-1998 priority document.pdf | 2011-10-06 |
| 17 | 00503-cal-1998 priority document others.pdf | 2011-10-06 |
| 18 | 00503-cal-1998 g.p.a.pdf | 2011-10-06 |
| 19 | 00503-cal-1998 form-5.pdf | 2011-10-06 |
| 20 | 00503-cal-1998 form-3.pdf | 2011-10-06 |
| 21 | 00503-cal-1998 form-2.pdf | 2011-10-06 |
| 22 | 00503-cal-1998 form-1.pdf | 2011-10-06 |
| 23 | 00503-cal-1998 drawings.pdf | 2011-10-06 |
| 24 | 00503-cal-1998 description (complete).pdf | 2011-10-06 |
| 25 | 00503-cal-1998 correspondence.pdf | 2011-10-06 |
| 26 | 00503-cal-1998 claims.pdf | 2011-10-06 |
| 27 | 00503-cal-1998 abstract.pdf | 2011-10-06 |
| 28 | 503-CAL-1998-FORM-27.pdf | 2012-03-31 |
| 29 | 503-CAL-1998-FORM-27-1.pdf | 2012-07-18 |
| 30 | 503-CAL-1998-(06-05-2013)-FORM-27.pdf | 2013-05-06 |
| 31 | FORM 27 196610.pdf | 2015-03-30 |
| 32 | Form 27 [31-03-2016(online)].pdf | 2016-03-31 |
| 33 | Form 27 [28-03-2017(online)].pdf | 2017-03-28 |
| 34 | 503-CAL-1998-RELEVANT DOCUMENTS [31-03-2018(online)].pdf | 2018-03-31 |