Abstract: A sampling tool includes a tubular member and a sampling piston positioned within the tubular member. The sampling piston has a bore formed axially-therethrough. A secondary piston is positioned within the bore of the sampling piston. A check valve assembly is positioned at least partially within the tubular member. The secondary piston and the check valve assembly move together with respect to the tubular member.

Abstract: A sampling tool includes a tubular member and a sampling piston positioned within the tubular member. The sampling piston has a bore formed axially-therethrough. A secondary piston is positioned within the bore of the sampling piston. A check valve assembly is positioned at least partially within the tubular member. The secondary piston and the check valve assembly move together with respect to the tubular member.

Abstract: A method for capturing a sample from a wellbore, comprising the steps of introducing a first message and a second message into a tubing positioned within the wellbore. The first message is directed to a first modem connected to a first sampler device to cause the first sampler device to collect a first sample. The second message is directed to a second modem connected to a second sampler device to cause the second sampler device to collect a second sample.

Abstract: A method for capturing a sample from a wellbore, comprising the steps of introducing a first message and a second message into a tubing positioned within the wellbore. The first message is directed to a first modem connected to a first sampler device to cause the first sampler device to collect a first sample. The second message is directed to a second modem connected to a second sampler device to cause the second sampler device to collect a second sample.

Abstract: A paint striper has a main body having a head portion, an interior cavity, and a slot in fluid communication between the head portion and the interior cavity. The slot is configured for receiving a wheel, and the interior cavity is configured for receiving paint. A wheel is rotatably mounted in the slot with a portion of the wheel extending into the interior cavity. A shoulder extends from the main body, and a guide extends from the shoulder for following a guide track formed in a strip positioned on a surface of the vehicle, wherein the track is substantially parallel to the desired position of the pinstripe. The strip is secured in position on the surface of the vehicle using adhesive which permits removal of the strip from the surface of the vehicle without leaving a residue, and re-use of the strip on a surface of another vehicle.

Abstract: A circuit in a semiconductor device for testing jitter tolerance of a receiver in the semiconductor device. The circuit includes a jitter injection circuit that has an output connected to an input in a phase-locked loop circuit. The jitter injection circuit generates an output signal in response to an application of an input signal. The phase-locked loop circuit has an output that generates a clock signal, wherein the clock signal may be altered by the output signal from the jitter injection circuit. The clock signal from the phase-locked loop circuit controls transmission of data at the transmitter. Alteration of the clock signal caused by the jitter injection circuit alters the manner in which the transmitter transmits data.

Abstract: A method of electrolytically graining aluminium, aluminium alloy or aluminium laminate, desirably in a substantially uniform manner, in particular for use as a lithographic printing plate substrate, is disclosed wherein the graining is effected using a square wave alternating current.

Abstract: Aluminium sheets for lithographic printing plate production are anodized firstly in a phosphoric acid electrolyte and secondly in an electrolyte containing a major amount of phosphoric acid and a minor amount of sulphuric acid.