EP 0064636 B1 19850327 - DEVICE FOR GENERATING HOT GAS FOR SHRINKING PLASTIC SHEETS
Title (en)
DEVICE FOR GENERATING HOT GAS FOR SHRINKING PLASTIC SHEETS
Publication
Application
Priority
DE 3118396 A 19810509
Abstract (en)
[origin: US4470807A] The invention concerns an apparatus for producing a hot gas to shrink plastic foils, with at least one burner mounted in a housing provided with a discharge nozzle for the hot gas. To better control the hot-gas temperature and hence the temperature of shrinking, the apparatus is provided with such a burner arrangement that the hot-gas jet (9 or 10) leaving the burner (7 or 8) is directed at an angle to the discharge flow defined by the discharge nozzle (6) and with a jet-deflection means for the hot-gas jet (9 or 10) before the discharge nozzle (6). In a preferred embodiment the jet deflection is implemented by a jet (17) of cold air by means of which the hot-gas jet (9 or 10) is simultaneously directed and cooled. In a preferred mode, the pressure and the flow rate of the cold-air jet (17) are controlled.
IPC 1-7
IPC 8 full level
B65B 53/06 (2006.01); F23D 99/00 (2010.01)
CPC (source: EP US)
B65B 53/06 (2013.01 - EP US); F23D 91/02 (2015.07 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0064636 A1 19821117; EP 0064636 B1 19850327; AT E12377 T1 19850415; DE 3118396 A1 19821202; DE 3262756 D1 19850502; US 4470807 A 19840911
DOCDB simple family (application)
EP 82103394 A 19820422; AT 82103394 T 19820422; DE 3118396 A 19810509; DE 3262756 T 19820422; US 37662082 A 19820510