Abstract: An apparatus for carrying well samplers including a tubular carrier housing, a crossover sub connected to the housing, and a pair of adjacent single phase samplers set off from the tool centerline axis thereby providing an offset interspatial through-bore region to support wireline operations. The pair of single phase samplers are removably disposed between upper and lower positioning inserts. The inserts have recessed sampler seats and through-bores that align with the interspatial through-bore region. A conduit fluidly connects one pair of recessed seats to the tool exterior so as to port annulus pressure to the pressure-activated triggering mechanisms of the samplers. A rupture disk housing is removably connected to the triggering conduit from an exterior recess in the crossover sub. The other positioning insert includes a clamping mechanism to removably secure the samplers within the carrier. Multiple assemblies of crossover subs and carrier housing can be connected in tandem.

Abstract: An apparatus for carrying well samplers including a tubular carrier housing, a crossover sub connected to the housing, and a pair of adjacent single phase samplers set off from the tool centerline axis thereby providing an offset interspatial through-bore region to support wireline operations. The pair of single phase samplers are removably disposed between upper and lower positioning inserts. The inserts have recessed sampler seats and through-bores that align with the interspatial through-bore region. A conduit fluidly connects one pair of recessed seats to the tool exterior so as to port annulus pressure to the pressure-activated triggering mechanisms of the samplers. A rupture disk housing is removably connected to the triggering conduit from an exterior recess in the crossover sub. The other positioning insert includes a clamping mechanism to removably secure the samplers within the carrier. Multiple assemblies of crossover subs and carrier housing can be connected in tandem.

Abstract: The invention provides a unique self actuating mechanical dual lift control for valves used in reciprocating compressors and pumps. The primary motivation for this concept is the ability to avoid expensive shutdown to change valves when compressor services change. The dual lift valve concept reduces valve power consumption by permitting a secondary lift to increase flow area at or near the peak piston speed. This concept may be retrofitted to some existing valves.

Abstract: A packet comprises an outer shell (0) and an inner shell (I) connected by a spring member (12). The outer shell (0) defines a cavity for receiving the inner shell (I) and comprises a bottom wall (4B), a front wall (1) and two side walls (3R, 3L) upstanding from respective edges of the bottom wall. The inner shell (I) comprises a front wall (11), a rear wall (7) and two side walls (8R, 8L), the rear wall being connected to the bottom wall of the outer shell. The spring member (12) is hingedly connected by a first hinge (H 1) at a lower portion of the front wall (11) of the inner shell and is hingedly connected by a second hinge (H2) to the inner surface of the front wall of the outer shell. The inner shell (I) is hingedly connected to the outer shell (0) by a third hinge (H3) at the said bottom wall such that the inner shell moves with spring action between closed and open positions.

Abstract: The invention describes a filter (1) with a first filter portion (6) comprising an adsorbent, for example carbon, and/or a catalyst, capable of reducing various vapour phase constituents of cigarette smoke. The adsorbent/catalyst is separated from a second filter portion by means of a barrier (2) having pores therein of pore size less than 0.1 ?m. The invention also describes a smoking article in which a rod of smoking material, with or without encapsulated flavour, is attached to the above described filter.