Global Patent Index - EP 1021642 A1

EP 1021642 A1 2000-07-26 - VOLUMETRIC-DISPLACEMENT DEVICE HAVING MOLDED PISTONS AND CYLINDERS

Title (en)

VOLUMETRIC-DISPLACEMENT DEVICE HAVING MOLDED PISTONS AND CYLINDERS

Title (de)

VORRICHTUNG MIT VOLUMETRISCHER VERDRÄNGUNG UND GEGOSSENEN ZYLINDERN UND KOLBEN

Title (fr)

DISPOSITIF A DEPLACEMENT VOLUMETRIQUE COMPRENANT DES CYLINDRES ET DES PISTONS MOULES

Publication

EP 1021642 A1 (EN)

Application

EP 98935719 A

Priority

  • US 9814725 W
  • US 5283997 P

Abstract (en)

[origin: WO9904140A1] A volumetric-displacement-maximizing device includes a molded slider (12) bidirectionally movable within an elongate cavity (14) formed within a molded body (16). The body (16) also includes a port structure (18) with an output port (18a) and an input port (18b), each providing channels for communication between the cavity (14) and an extra body location. A power device (22) causes the slider (12) to move bidirectionally within the cavity (14), and the clearance between the slider (12) and the cavity (14) exceeds 0 - but is less than approximately 0.0003 inches. The device of the invention takes several alternative forms including a fluid mechanical device, and has several alternate applications as a pump, valve, or motor. The invention also includes various method features.

IPC 1-7 (main, further and additional classification)

F01B 9/00; F04B 39/10; F16J 9/00; F16J 10/02

IPC 8 full level (invention and additional information)

F01B 31/00 (2006.01); F01B 1/08 (2006.01); F01B 9/00 (2006.01); F04B 1/02 (2006.01); F04B 9/04 (2006.01); F04B 19/00 (2006.01); F04B 27/02 (2006.01); F16J 10/02 (2006.01)

CPC (invention and additional information)

F04B 1/02 (2013.01); F01B 1/08 (2013.01); F01B 9/00 (2013.01); F04B 9/045 (2013.01); F04B 19/006 (2013.01); F04B 27/02 (2013.01); F05C 2225/00 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9904140 A1 19990128; AU 8490598 A 19990210; EP 1021642 A1 20000726; EP 1021642 A4 20020925; JP 2001510268 A 20010731

INPADOC legal status


2003-05-28 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20021106

2002-09-25 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20020812

2002-09-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2002-09-25 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7F 01B 9/00 A, 7F 04B 39/10 B, 7F 16J 9/00 B, 7F 16J 10/02 B, 7F 04B 53/14 B

2000-07-26 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000215

2000-07-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE