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1. (WO2001002177) SEAL FOR A MICRO ELECTRO-MECHANICAL LIQUID CHAMBER
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/002177 International Application No.: PCT/AU2000/000581
Publication Date: 11.01.2001 International Filing Date: 24.05.2000
Chapter 2 Demand Filed: 25.01.2001
IPC:
B41J 2/045 (2006.01) ,B41J 2/14 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2
Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005
characterised by bringing liquid or particles selectively into contact with a printing material
01
Ink jet
015
characterised by the jet generation process
04
generating single droplets or particles on demand
045
by pressure, e.g. electromechanical transducers
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2
Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005
characterised by bringing liquid or particles selectively into contact with a printing material
01
Ink jet
135
Nozzles
14
Structure thereof
Applicants:
SILVERBROOK, Kia [AU/AU]; AU (UsOnly)
SILVERBROOK RESEARCH PTY LTD [AU/AU]; 393 Darling Street Balmain, New South Wales 2041, AU (AllExceptUS)
Inventors:
SILVERBROOK, Kia; AU
Priority Data:
PQ 131030.06.1999AU
Title (EN) SEAL FOR A MICRO ELECTRO-MECHANICAL LIQUID CHAMBER
(FR) ETANCHEITE POUR UNE CHAMBRE DE LIQUIDE MICRO ELECTROMECANIQUE
Abstract:
(EN) A micro electro-mechanical device for ink jet printers has a liquid-containing nozzle chamber (12) and a movable component (20, 22) [thermal actuator structure] extending into the chamber. Difficulties exist in sealing such a device against movement of the liquid through an opening through which the actuator extends. This difficulty is resolved by shaping the actuator (20, 22) in such a way as to induce the formation and maintenance between the wall of the chamber and the actuator (20, 22). The first portion (20) of the actuator is located substantially within the nozzle chamber and the second portion (22) is located outside the nozzle chamber. The stem portion (26) of the second portion (22) is connected by a shoulder (28) to an end portion (30) of the first actuator portion (20). A meniscus formed between the step (26) and the outer edges (36) forms a seal preventing liquid from inside the chamber to leak through.
(FR) L'invention concerne un dispositif micro électromécanique pour des imprimantes à jet d'encre comportant une chambre (12) d'ajutage contenant du liquide et des éléments (20, 22) mobiles [structure d'actionneur thermique] s'étendant dans la chambre. Des difficultés existent lors de l'étanchéification d'un tel dispositif, contre le mouvement du liquide, à travers une ouverture à travers laquelle l'actionneur s'étend. Cette difficulté est résolue par formation de l'actionneur (20, 22) de manière à induire la formation et la maintenance entre la paroi de la chambre et l'actionneur (20, 22). La première partie (20) de l'actionneur est placée sensiblement à l'intérieur de la chambre d'ajutage et la seconde partie (22) est placée hors de celle-ci. La partie tige (26) de la seconde partie (22) est connectée par une épaule (28) à une partie terminale (30) de la première partie (20) de l'actionneur. Un ménisque formé entre la tige (26) et les bords extérieurs (36) forme une étanchéité empêchant des fuites du liquide se trouvant à l'intérieur de la chambre.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)