EP 0469419 A2 19920205 - Reagent containment and delivery tray.
Title (en)
Reagent containment and delivery tray.
Title (de)
Behälter und Abgabeplatte für Reagenzien.
Title (fr)
Récipient et plaque de distribution pour réactif.
Publication
Application
Priority
US 56195790 A 19900802
Abstract (en)
A high-precision liquid reagent delivery system is provided for convenient and efficient gravity flow delivery of substantially the entire volume of reagent contained within a sealed formed tray. The delivery system comprises a formed tray (10) defining a curved cavity (12) for holding a predetermined amount of liquid, and a substantially planar ledge surface (14) defined around the cavity opening. The surfaces of the cavity are non-porous, uniform and smoothly converging to a point (20) of liquid discharge at an intersection of the cavity and the ledge surface (22). The ledge surface further defines an apex extending longitudinally from the point of liquid discharge and defines a guide path for the delivery of liquid contained within the tray (10). The system also includes a flexible cover (40) removably affixed to the ledge surface of the tray for forming a sealed chamber between the cavity (12) and the affixed cover (40) for containment of liquid. The cover (40) extends beyond the apex (22) of the ledge surface (14) to define a tab portion (42) which can be grasped and pulled from the ledge surface (14) to remove the cover (40). Removal of the flexible cover (40) in such a manner with the tray (10) positioned in a upstanding manner with the point of liquid discharge (20) directed downward provides gravity flow delivery of all liquid contained within the tray (10) with a low coefficient of variation. <IMAGE>
IPC 1-7
IPC 8 full level
B01L 3/00 (2006.01); B65D 77/20 (2006.01)
CPC (source: EP)
B01L 3/505 (2013.01); B65D 77/2024 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0469419 A2 19920205; EP 0469419 A3 19920603; EP 0469419 B1 19960403; AT E136232 T1 19960415; AU 633218 B2 19930121; AU 7927991 A 19920521; CA 2043464 A1 19920203; CA 2043464 C 20010130; DE 69118458 D1 19960509; DE 69118458 T2 19960808; DK 0469419 T3 19960805; ES 2085384 T3 19960601; GR 3020204 T3 19960930; JP 3181941 B2 20010703; JP H04256446 A 19920911
DOCDB simple family (application)
EP 91112185 A 19910720; AT 91112185 T 19910720; AU 7927991 A 19910624; CA 2043464 A 19910529; DE 69118458 T 19910720; DK 91112185 T 19910720; ES 91112185 T 19910720; GR 960401570 T 19960612; JP 21418491 A 19910801