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1. (WO1991007860) HEAT SEALING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/007860 International Application No.: PCT/GB1990/001737
Publication Date: 30.05.1991 International Filing Date: 12.11.1990
Chapter 2 Demand Filed: 10.06.1991
IPC:
B29C 65/00 (2006.01) ,B29C 65/18 (2006.01) ,B29C 65/38 (2006.01) ,H05B 3/14 (2006.01) ,H05B 3/58 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65
Joining of preformed parts; Apparatus therefor
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65
Joining of preformed parts; Apparatus therefor
02
by heating, with or without pressure
18
using heated tool
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65
Joining of preformed parts; Apparatus therefor
02
by heating, with or without pressure
38
Impulse heating
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
3
Ohmic-resistance heating
10
Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
12
characterised by the composition or nature of the conductive material
14
the material being non-metallic
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
3
Ohmic-resistance heating
40
Heating elements having the shape of rods or tubes
54
flexible
58
Heating hoses; Heating collars
Applicants:
STORLAND PLC [GB/GB]; Unit 1 Jubilee Trade Centre Letchworth Herts. SG6 1SP, GB (AllExceptUS)
BUTTERY, Gerald [GB/GB]; GB (UsOnly)
Inventors:
BUTTERY, Gerald; GB
Agent:
HARRISON, Ivor, Stanley; Withers and Rogers 4 Dyer's Buildings Holborn London EC1N 2JT, GB
Priority Data:
8925449.410.11.1989GB
8925450.210.11.1989GB
Title (EN) HEAT SEALING
(FR) THERMOSOUDAGE
Abstract:
(EN) A heat application member (5) for heat sealing materials together comprises a portion of resilient solid material (56) and resistive means for providing heat, the member being arranged to discharge heat through at least one location on the external surface (6) of the member. The member may be incorporated in heat sealing apparatus comprising a pair of confronting reciprocable jaws or may comprise an endless belt. A heat sealing method and heating circuit are also described.
(FR) Un élément applicateur de chaleur (5) servant à thermosouder des matériaux comporte une partie en matériau solide élastique (56) et un moyen résistant servant à fournir de la chaleur. L'élément est disposé pour dégager de la chaleur à travers au moins un endroit situé sur sa surface externe (6). Il peut être incorporé à un appareil de thermosoudage comportant une paire de mâchoires opposées interactives ou peut comprendre une ceinture sans fin. On décrit également un procédé de thermosoudage et un circuit chauffant.
Designated States: CA, JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)