公开(公告)号：GB2246081A

公开(公告)日：1992-01-22

申请号：GB9115091

申请日：1991-07-12

Applicant: BIO RAD LABORATORIES

Inventor： FERNWOOD GEORGE ,  PENALUNA WILLIAM A ,  GEISSELSODER JANET

IPC: B01D35/02 ,  B01D29/01 ,  B01D61/18 ,  B01D63/08 ,  B01L3/00 ,  C12M1/12

Abstract: A plate assembly for performing multiple filtrations with the use of a vacuum comprises an upper plate 11 with apertures 12 forming sample wells, a membrane sheet 13 forming the floor of each well, a collection plate 19 with individual wells 20 underneath the membrane sheet, aligned with the upper plate apertures, and a drop guide plate 15 between the membrane sheet and the collection plate to guide small quantities of filtrate downward from the membrane into the collection wells. Guide plate 15 comprises individual tubes 41, less than 2.5 mms in diameter, which project into wells 20, and raised lands which clamp the membrane sheet against the underside of upper plate 11 around each aperture 12. Plate 16 enables plate 15 to be clamped to plate 11 by screws 26, forming an assembly which may be latched to lower support plate 21. Plate 21 supports collection plate 19 while defining a space, above and below plate 19, to which vacuum is applied.

公开(公告)号：GB2143946B

公开(公告)日：1986-12-10

申请号：GB8412734

申请日：1984-05-18

Applicant: BIO RAD LABORATORIES

Inventor： FERNWOOD GEORGE ,  BURD SAMUEL

IPC: G01N33/48 ,  B01D61/18 ,  B01L3/00 ,  C12M1/12 ,  C12M1/20 ,  G01N33/53 ,  G01N33/543 ,  B01D13/00

Abstract: A biochemical test plate assembly is disclosed for use in both filter assays and fluid retention applications. The assembly comprises an upper template with a plurality of discrete apertures, a continuous microporous film underlying the upper template, a gasket underlying the microporous film with apertures matching those of the upper template, a lower template underlying the gasket with a similar array of apertures matching those of both the upper template and the gasket, each aperture terminating at its upper end in a flat boss, and a base plate having a central recess to define an enclosed chamber when the base plate and lower template are in contact, the base plate being designed to form an air-tight seal between it and the lower template.

公开(公告)号：DE3425762A1

公开(公告)日：1985-02-14

申请号：DE3425762

申请日：1984-07-12

Applicant: BIO RAD LABORATORIES

Inventor： FERNWOOD GEORGE ,  BURD SAMUEL

IPC: G01N33/48 ,  B01D61/18 ,  B01L3/00 ,  C12M1/12 ,  C12M1/20 ,  G01N33/53 ,  G01N33/543 ,  G01N31/20 ,  G01N33/54

Abstract: A biochemical test plate assembly is disclosed for use in both filter assays and fluid retention applications. The assembly comprises an upper template with a plurality of discrete apertures, a continuous microporous film underlying the upper template, a gasket underlying the microporous film with apertures matching those of the upper template, a lower template underlying the gasket with a similar array of apertures matching those of both the upper template and the gasket, each aperture terminating at its upper end in a flat boss, and a base plate having a central recess to define an enclosed chamber when the base plate and lower template are in contact, the base plate being designed to form an air-tight seal between it and the lower template.

公开(公告)号：CA2362042C

公开(公告)日：2007-05-01

申请号：CA2362042

申请日：2000-02-10

Applicant: BIO RAD LABORATORIES

Inventor： FERNWOOD GEORGE ,  PEREZ EVELIO

IPC: G01N27/447

Abstract: Flat plates serving as molds and enclosures for slab gels are held together by a clamping frame in which the side edges of the plates slide into facing channels and are clamped by lever-operated cams that compress the channel walls against the plate surfaces. The joined plates are held on a vertical support rack containing a finger-operated spri ng- loaded notched clamp that presses down on the plates to seal the opening at the bottom edges of the plates against a gasket. A well-formi ng comb for insertion between the plates contains flexible outwardly angled fingers to seal against the spacers between the plates.

公开(公告)号：DE01968542T1

公开(公告)日：2004-07-08

申请号：DE01968542

申请日：2001-09-04

Applicant: BIO RAD LABORATORIES

Inventor： FERNWOOD GEORGE ,  WHITMAN CHRISTINA ,  HARBERS J ,  PEREZ EVELIO

IPC: B01D57/02 ,  B03C5/00 ,  G01N27/447

公开(公告)号：AU8878401A

公开(公告)日：2002-03-22

申请号：AU8878401

申请日：2001-09-04

Applicant: BIO RAD LABORATORIES

Inventor： FERNWOOD GEORGE ,  WHITMAN CHRISTINA ,  HARBERS ADRIANA J ,  PEREZ EVELIO

IPC: B01D57/02 ,  B03C5/00 ,  G01N27/447

公开(公告)号：CA2362042A1

公开(公告)日：2000-08-17

申请号：CA2362042

申请日：2000-02-10

Applicant: BIO RAD LABORATORIES

Inventor： PEREZ EVELIO ,  FERNWOOD GEORGE

IPC: G01N27/447

Abstract: Flat plates serving as molds and enclosures for slab gels are held together by a clamping frame in which the side edges of the plates slide into facing channels and are clamped by lever-operated cams that compress the channel walls against the plate surfaces. The joined plates are held on a vertical support rack containing a finger-operated spring-loaded notched clamp that presses down on the plates to seal the opening at the bottom edges of the plates against a gasket. A well-forming comb for insertion between the plate s contains flexible outwardly angled fingers to seal against the spacers betwe en the plates.