Abstract: The present disclosure describes a field flow fractionator including (a) a top plate assembly including a top electrically conductive electrode, (b) an o-ring, (c) an electrically insulating frit, (d) an electrically insulating spacer between a bottom surface of the top electrode and the o-ring and the frit, (e) a membrane between the spacer and the frit, and (f) a bottom plate assembly including a bottom electrically conductive electrode.

Abstract: A subsea valve actuation system is disclosed and comprises a contact portion for connecting an actuator to a receptacle, the receptacle for connecting an actuator to a subsea valve. The receptacle comprises a receptacle housing having proximal and distal ends and an internal chamber, wherein the proximal end is connectable to a body of the valve; and each of the contact portion and the receptacle having a longitudinal axis; the contact portion having a first axially facing mating end face; and the receptacle housing having a second axially facing mating end face. One of the first or second mating end faces has protrusions; and the other of the first or second mating end faces defines corresponding recesses for receiving the protrusions.

Abstract: The invention relates to a subsea equipment (100) and a subsea receptacle (200), a subsea system (1) comprising the subsea equipment (100) and the subsea receptacle (200) as well as a method of mounting the subsea equipment (100) to the subsea receptacle (200).

Abstract: Embodiments of the invention include a light assembly configured to selectively deliver a light beam in a direction along an assembly axis, with circular magnetic couplings located coaxially and radially for receiving accessories, according to various embodiments. Embodiments of the accessories may include, for example and not by way of limitation, a tripod, extension arm, carabiner accessory, spring clamp accessory, sliding spring clamp accessory, wristband accessory, barrel mount accessory, picatinny rail mount accessory and belt mount accessory. Kit embodiments including the light assembly and various combinations of the accessories are also disclosed.

Abstract: A bonnet seal assembly for a gate valve includes a generally cylindrical packing nut positioned in the stem bore around the valve stem. The packing nut includes first and second spaced-apart annular sealing surfaces, and the bonnet seal assembly includes a third annular sealing surface connected to or formed integrally with the valve stem and a fourth annular sealing surface formed concentrically in the stem bore. In a first position of the valve stem, the first annular sealing surface sealingly engages the third annular sealing surface to thereby form a first seal between the valve stem and the packing nut, and the second annular sealing surface sealing engages the fourth annular sealing surface to thereby form a second seal between the packing nut and the stem bore. In this manner, the first and second seals together operate to seal the stem bore from fluid pressure in the gate cavity.

Abstract: A gate valve includes a valve body, a flow bore which extends completely through the valve body, a gate cavity which extends partially through the valve body and intersects the flow bore, a bonnet which is mounted to the valve body over the gate cavity and includes a stem bore which extends axially therethrough and is connected to the gate cavity, a valve stem which is movably positioned in the stem bore, a gate which is connected to the second end of the valve stem and is movable by the valve stem between a closed position in which fluid flow through the flow bore is blocked and an open position in which fluid flow through the flow bore is permitted, and a bonnet seal assembly for sealing the stem bore against fluid pressure in the cavity.

Abstract: The present invention describes methods and apparatuses for the synthesis of 5-(chloromethyl)-2-furaldehyde (CMF) from saccharides in pure or crude form, the method comprising: (a) continuously contacting saccharides in pure or crude form, hydrochloric acid, and an organic solvent, by way of a continuous, biphasic-flow reactor assembly at a temperature from about 60 degrees C. to about 200 degrees C. and pressures from about 1 atmosphere to about 20 atmospheres, such that CMF is produced; (b) separating 5-(chloromethyl)-2-furaldehyde by liquid/liquid and solid/liquid phase separation; (c) producing at least five kilograms per day with at least 50% yield. Embodiments of the present invention can produce CMF in a continuous fashion, with high yield and without degradation of CMF to such side products as 5-(hydroxymethyl)furfural (HMF), 2-(2-hydroxyacetyl)furan (HAF) and levulinic acid (LA).

Abstract: The present invention describes methods and apparatuses for the synthesis of 5-(chloromethyl)-2-furaldehyde (CMF) from saccharides in pure or crude form, the method comprising: (a) continuously contacting saccharides in pure or crude form, hydrochloric acid, and an organic solvent, by way of a continuous, biphasic-flow reactor assembly at a temperature from about 60 degrees C. to about 200 degrees C. and pressures from about 1 atmosphere to about 20 atmospheres, such that CMF is produced; (b) separating 5-(chloromethyl)-2-furaldehyde by liquid/liquid and solid/liquid phase separation; (c) producing at least five kilograms per day with at least 50% yield. Embodiments of the present invention can produce CMF in a continuous fashion, with high yield and without degradation of CMF to such side products as 5-(hydroxymethyl)furfural (HMF), 2-(2-hydroxyacetyl)furan (HAF) and levulinic acid (LA).