Global Patent Index - EP 2024662 A2

EP 2024662 A2 2009-02-18 - POSITIVE DISPLACEMENT VARIABLE SPEED TRANSMISSION WITH DUAL MOTION DRIVE GEARS

Title (en)

POSITIVE DISPLACEMENT VARIABLE SPEED TRANSMISSION WITH DUAL MOTION DRIVE GEARS

Title (de)

ÜBERTRAGUNG MIT POSITIVER VERSCHIEBUNG UND VARIABLER GESCHWINDIGKEIT MITHILFE EINES DOPPELGETRIEBESYSTEMS

Title (fr)

TRANSMISSION A VITESSE VARIABLE ET A DEPLACEMENT POSITIF INCLUANT DES ENGRENAGES D'ENTRAINEMENT A MOUVEMENT DOUBLE

Publication

EP 2024662 A2 (EN)

Application

EP 07873838 A

Priority

  • US 2007070595 W
  • US 80427306 P
  • US 75920707 A
  • US 75920607 A

Abstract (en)

[origin: WO2008105891A2] The present invention relates to transmission systems and changing gear ratios within power transmission systems. In particular, the present invention relates to a positive displacement variable speed transmission. The transmission includes one or more drive gears which orbit, rotate, and which translate radially to change the size of the orbital path. The change in the orbital path increases or decreases the linear velocity of the drive gears which engage one or more driven gears and transfer the changed linear velocity in the form of a gear ratio change. The driven gears are also radially movable and movement of the driven gears is synchronized with the radial movement of the drive gears to maintain substantially constant engagement between gear ratios change. Thus, as the drive and driven gears can slide or step radially to any location within a range of positions, gear ratio changes can be made in very small increments.

IPC 8 full level (invention and additional information)

F16H 37/16 (2006.01)

CPC (invention and additional information)

F16H 3/76 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

WO 2008105891 A2 20080904; WO 2008105891 A3 20081113; BR PI0712329 A2 20120110; CA 2654078 A1 20080904; CA 2654078 C 20110719; CA 2736815 A1 20080904; CA 2736815 C 20120327; CN 101484726 A 20090715; EP 2024662 A2 20090218; EP 2024662 A4 20090902; JP 2009540236 A 20091119; JP 2012042061 A 20120301; JP 4932907 B2 20120516; JP 5694131 B2 20150401; KR 101099568 B1 20111228; KR 20090020682 A 20090226

INPADOC legal status


2015-12-31 [REG HK WD] APPLICATIONS WITHDRAWN, DEEMED TO BE WITHDRAWN, OR REFUSED AFTER PUBLICATION IN HONG KONG

- Document: HK 1129440

2010-08-25 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20100302

2009-11-27 [REG HK DE] REQUESTS TO DESIGNATE PATENT IN HONG KONG

- Document: HK 1129440

2009-11-18 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20091016

2009-09-02 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20090804

2009-02-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081127

2009-02-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

2009-02-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK RS