초록 ▼

A plastic reaction vessel for holding a small quantity of liquid comprises a vessel body which has a body flange (4) surrounding an opening formed in the body, a cover, and a connecting strip (5) which is integral with the vessel body and the cover. Opposite to the connecting strip (5), the body fla

A plastic reaction vessel for holding a small quantity of liquid comprises a vessel body which has a body flange (4) surrounding an opening formed in the body, a cover, and a connecting strip (5) which is integral with the vessel body and the cover. Opposite to the connecting strip (5), the body flange (4) has a downwardly facing abutment surface (25), which is engageable by a hooklike extension (23), which is formed on the cover (6) and extends downwardly when the cover is closed. The connecting strip (5) comprises a hinge portion (12) between its opposite end portions. The cover comprise a cylindrical skirt, which is adapted to be inserted into the vessel body through the opening therein. A sealing lip (8) is provided on the outside of said skirt at that end thereof which is adapted to be inserted into the opening of the vessel body. The cover (6) has an outwardly protruding rim (16), from which a depending flange extends, which contacts the body flange so that a parallel guidance of the cover (6) is effected in conjunction with the hinge portion of the connecting strip. An alignment of the cover (6) is effected by the sealing lip (8), which is formed on the cylindrical skirt and in sealing contact with the inside surface of the vessel body.

대표청구항 ▼

In a plastic reaction vessel comprising a hollow vessel body having an inside peripheral surface and an edge portion which defines an opeing (2) adjoining said surface, a cover comprising a cylindrical skirt which extends through said opening into said vesssel body and is removable therefrom and has

In a plastic reaction vessel comprising a hollow vessel body having an inside peripheral surface and an edge portion which defines an opeing (2) adjoining said surface, a cover comprising a cylindrical skirt which extends through said opening into said vesssel body and is removable therefrom and has an inner end provided with a sealing lip (8) in sealing contact with said inside peripheral surface, said cover having a radially outwardly protruding rim which is axially spaced from said sealing lip and contacts said edge portion along a substantial part of the peripheral extent of the edge portion, said cover also comprising a transverse wall, said wall axially spaced from said sealing lip and closing said skirt, and a flexible connecting strip (5) having opposite ends that are respectively integral with said vessel body and said cover, said connecting strip permitting said skirt to be removed from said vessel through said opening, the improvement comprising that said vessel body comprises a body flange (4) which surrounds said edge portion, said flange defining a downwardly facing abutment surface (25, 41) extending radially outwardly from said vessel body at a location which is diametrically opposite to said connecting strip, said cover comprises a hooklike extension (23) which is attached to said body flange and spaced radially outwardly from said skirt and releasably engages said abutment surface, said connecting strip comprises a hinge portion (12) defining between said opposite ends at least one laterally extending hinge axis, said cover comprises a depending flange extending downwardly from the outer edge of said rim and contacting the periphery of said body flange, wherein said hinge portion of said connecting strip comprises two hinges (31, 32) spaced apart along said strip, so that in conjunction with said depending flange said hinge portion permits a lateral movement of said cover whereas a parallel guidance of said cover is effected by said depending flange in contact with said body flange, said hinges spaced such a distance apart that said parallel guidance is provided in a height which corresponds to the length of said hooklike extension, and an alignment of the cover is effected by the contact of said sealing lip with said inside surface, and wherein said hinge portion (12) is provided with an inwardly protruding projection (13) attached to said hinge portion (12) of said connecting strip and located between said hinges, said projection (13) serving for holding said hinges (31, 32) spaced apart and for effecting a parallel guidance by means of said hinges, and wherein said hinge portion (12) is thinner between said hinges than those portions (14, 15) of said connecting strip which extend from said hinge portion to said vessel body (1) and said cover (6), respectively, and an upwardly protruding step (33) facing away from said vessel body is formed in said portion which extends from said hinge portion to said vessel body.