Title:
【発明の名称】固体CO▲2▼のブロックを低圧で自動的に製造する方法及び装置
Document Type and Number:
Japanese Patent JP3428642
Kind Code:
B2
Abstract:
A method and apparatus to automatically produce blocks of solid CO2 at low pressure. The apparatus includes at least one closed mold coupled to a liquid CO2 conditioner and a CO2 gas recovery system, and a control panel for automatic operation. The method consists in supplying liquid CO2 to this mold at a low pressure in order to fill the mold with CO2 snow of low density during a definite period of time, to then raise the pressure inside the mold to an intermediate pressure by supplying liquid CO2 at this pressure (and at a temperature of approximately -40 DEG C.) to form a dense mass of solid CO2 which after a definite time will block the admission of CO2 to the mold, causing a significant pressure drop that is used to create a signal to automatically close off the supply of liquid CO2 and finalize the production cycle of the block.
Inventors:
Roades, George David
Geiger, Roger Frederick
Izquierdo, Jose Marco Antonio Anaya
Fernandez, Emilio Avedillo
Geiger, Roger Frederick
Izquierdo, Jose Marco Antonio Anaya
Fernandez, Emilio Avedillo
Application Number:
JP51111993A
Publication Date:
July 22, 2003
Filing Date:
December 11, 1992
Export Citation:
Assignee:
Liquid Carbonic Corporation
International Classes:
C01B32/55; F25J1/00; (IPC1-7): C01B31/22; F25J1/00
Domestic Patent References:
| JP4975485A |
Other References:
【文献】米国特許1759772(US,A)
【文献】米国特許1870691(US,A)
【文献】米国特許1925041(US,A)
【文献】米国特許1925619(US,A)
【文献】米国特許1950180(US,A)
【文献】米国特許2738658(US,A)
【文献】米国特許3124442(US,A)
【文献】米国特許3443389(US,A)
【文献】米国特許3661483(US,A)
【文献】米国特許4033736(US,A)
【文献】米国特許4374658(US,A)
【文献】米国特許4770684(US,A)
【文献】米国特許1870691(US,A)
【文献】米国特許1925041(US,A)
【文献】米国特許1925619(US,A)
【文献】米国特許1950180(US,A)
【文献】米国特許2738658(US,A)
【文献】米国特許3124442(US,A)
【文献】米国特許3443389(US,A)
【文献】米国特許3661483(US,A)
【文献】米国特許4033736(US,A)
【文献】米国特許4374658(US,A)
【文献】米国特許4770684(US,A)
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)