Global Patent Index - EP 0998645 A1

EP 0998645 A1 2000-05-10 - CONTROL METHOD FOR A CRYOGENIC UNIT

Title (en)

CONTROL METHOD FOR A CRYOGENIC UNIT

Title (de)

STEUERVERFAHREN FÜR EINE KYROGENE ANLAGE

Title (fr)

PROCEDE DE REGULATION POUR UNITE CRYOGENIQUE

Publication

EP 0998645 A1 (EN)

Application

EP 98934433 A

Priority

  • US 9814392 W
  • US 5701397 P

Abstract (en)

[origin: WO9902916A1] Apparatus and methods for improving efficiency of a temperature conditioning system which employs a cryogenic liquid. A vapor powered ventilation motor (68) is normally powered by vapor from the low pressure end of the evaporation coils (62, 64). However, supplemental vapor (72) is provided at start-up to provide immediate ventilation. In addition, vapor which bleeds off valves is cycled through the vapor powered motor (68) or used to maintain a slight positive pressure when the system is shut down.

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

F17C 9/04; B60H 1/32; F25B 29/00

IPC 8 full level (invention and additional information)

F17C 9/02 (2006.01); F17C 9/04 (2006.01); F25B 19/00 (2006.01); F25D 3/10 (2006.01); F25D 17/06 (2006.01); F25B 27/00 (2006.01)

CPC (invention and additional information)

F25D 3/10 (2013.01); F17C 9/04 (2013.01); F25D 17/06 (2013.01); F17C 2205/0332 (2013.01); F17C 2205/0338 (2013.01); F17C 2205/0341 (2013.01); F17C 2221/013 (2013.01); F17C 2221/014 (2013.01); F17C 2221/038 (2013.01); F17C 2223/0161 (2013.01); F17C 2227/0309 (2013.01); F17C 2250/043 (2013.01); F17C 2250/0439 (2013.01); F17C 2250/0631 (2013.01); F17C 2260/032 (2013.01); F17C 2265/032 (2013.01); F17C 2270/0171 (2013.01); F17C 2270/0545 (2013.01); F25B 27/00 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

WO 9902916 A1 19990121; AU 8395198 A 19990208; CA 2295562 A1 19990121; EP 0998645 A1 20000510; EP 0998645 A4 20010110; JP 2001518596 A 20011016

INPADOC legal status


2007-05-23 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20061205

2006-08-09 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: THERMO KING CORPORATION

2001-01-10 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20001124

2001-01-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): DE FR GB IT

2000-05-10 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000120

2000-05-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT