EP 0179366 A3 19870819 - METHOD OF AND CONTROL SYSTEM FOR MONITORING THE SUPPLY OF A LIQUIFIED GAS UNDER PRESSURE TO A CONTAINER
Title (en)
METHOD OF AND CONTROL SYSTEM FOR MONITORING THE SUPPLY OF A LIQUIFIED GAS UNDER PRESSURE TO A CONTAINER
Publication
Application
Priority
US 66061484 A 19841012
Abstract (en)
[origin: US4662154A] A control system for providing a closed loop control circuit between a liquid nitrogen dispenser and apparatus for determining internal pressure within a closed can having liquid nitrogen applied thereto whereby the automatic controlling of the volume of liquid nitrogen dispensed into each can is effected. Control data from a pressure test unit is averaged and the average is compared to a preselected set point and converted into a pulse of a width varying in accordance with the average detected pressure of previously filled cans to control the time of dispensing and thus the volume of dispensed liquid nitrogen.
IPC 1-7
IPC 8 full level
G05D 16/00 (2006.01); B65B 31/00 (2006.01); F17C 9/00 (2006.01); G05D 16/20 (2006.01)
CPC (source: EP US)
B65B 31/00 (2013.01 - EP US); B65B 31/006 (2013.01 - EP US); F17C 9/00 (2013.01 - EP US); F17C 2205/0326 (2013.01 - EP US); F17C 2221/014 (2013.01 - EP US); F17C 2223/0161 (2013.01 - EP US); F17C 2250/032 (2013.01 - EP US); F17C 2250/0408 (2013.01 - EP US); F17C 2250/043 (2013.01 - EP US); F17C 2250/0478 (2013.01 - EP US); F17C 2250/0621 (2013.01 - EP US); F17C 2250/0636 (2013.01 - EP US); F17C 2250/072 (2013.01 - EP US); F17C 2260/024 (2013.01 - EP US); F17C 2260/042 (2013.01 - EP US); F17C 2270/059 (2013.01 - EP US)
Citation (search report)
- [Y] US 4407340 A 19831004 - JENSEN ERIC L [US], et al
- [Y] US 3515860 A 19700602 - FITZGERALD CHARLES T JR
- [Y] US 4320463 A 19820316 - HIMMELSTEIN SYDNEY
- [A] US 4162689 A 19790731 - ZDRODOWSKI JOSEPH J [US]
- [A] PATENT ABSTRACTS OF JAPAN. Band 7, no. 254, (M-255)(1399) 11 November 1983; & JP-A-58 137 698 (HOTSUKAI SEIKAN) 16-08-1983
Designated contracting state (EPC)
AT CH DE LI
DOCDB simple family (publication)
EP 0179366 A2 19860430; EP 0179366 A3 19870819; JP H0448243 B2 19920806; JP S6197719 A 19860516; US 4662154 A 19870505
DOCDB simple family (application)
EP 85112915 A 19851011; JP 22665385 A 19851011; US 66061484 A 19841012