Measuring and testing – Sampler – sample handling – etc. – Withdrawing through conduit or receptacle wall
Reexamination Certificate
2006-08-01
2006-08-01
Williams, Hezron (Department: 2856)
Measuring and testing
Sampler, sample handling, etc.
Withdrawing through conduit or receptacle wall
C073S863410, C073S863810
Reexamination Certificate
active
07082848
ABSTRACT:
An injection needle particularly intended for transferring a representative fluid sample into a sample bottle (1) is closed by a membrane (2) made from a rubber elastic material. The needle has a tubular inner wall (6) having a needle point (8), and a tubular outer wall (10) concentrically surrounding and radially spaced from the inner wall (6) at least along a portion thereof distant from the needle point (8) and, at its end facing the needle point, having a conically tapering portion (12) sealingly engaging the inner wall (6). The outer wall (10) is provided with at least two apertures (14, 16) spaced longitudinally of the needle. When using the injection needle for the above purpose, fluid is injected into the sample bottle (1) from a fluid source of interest by inserting the injection needle into the sample bottle through the membrane to a level at which the penetrated portion of the membrane (2) sealingly engages the outer wall (10) of the needle between the spaced apertures (14, 16) in the outer wall, such that initially some of the fluid that is injected into the bottle is allowed to flow into the annulus between the inner and outer walls of the needle (4), through the aperture (14) of the outer wall at the inside of the membrane, and hence out through the aperture (16) of the outer wall to the outside of the membrane.
REFERENCES:
patent: 3954012 (1976-05-01), Christen et al.
patent: 4478095 (1984-10-01), Bradley et al.
patent: 4669321 (1987-06-01), Meyer
patent: 5012845 (1991-05-01), Averette
patent: 5370005 (1994-12-01), Fjerdingstad
patent: 5432098 (1995-07-01), Wilks
patent: 5483843 (1996-01-01), Miller et al.
patent: 5578495 (1996-11-01), Wilks
patent: 5604320 (1997-02-01), Boyd
patent: 6395560 (2002-05-01), Markelov
patent: 2002/0006360 (2002-01-01), Neal et al.
Fayyaz Nashmiya
Wenderoth , Lind & Ponack, L.L.P.
Williams Hezron
LandOfFree
Method of transferring a representative fluid sample from a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of transferring a representative fluid sample from a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of transferring a representative fluid sample from a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3710103