Patent Yard Sign in
Expired Canadian patentCanada

Method and apparatus for metering liquid samples

CA 1312481 C · Owner: Steiner, Denis · Inventors: Oppliger, Alain; Meyrat, Pierre-Andre; Steiner, Denis

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

First and second containers (R1; R2) are successively brought to a decanting station (C) in which the samples are metered. For this purpose a piston (17) is mounted so as to be able to penetrate each first container (R1), which can be lifted, when it enters the decanting station (C). The quantity of sample in the first container (R1) is greater than the quantity to be precisely metered which is poured into the second container (R2) by means of a pouring assembly (24 to 36) situated above it. A pouring member (40) may be placed between the second container and the pouring assembly. Thus when the first container acts as cylinder on the piston (17) a first, quantity of the sample rinses the …

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted January 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 12, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 22, 1987
GrantedJanuary 12, 1993
Term endedJanuary 12, 2010
Patent numberCA 1312481 C
Classification (IPC)G01F11/10 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedDec 22, 1987Patent grantedJan 12, 1993Term endedJan 12, 2010

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.