This patent discloses a coupler for coupling a loading arm to a pipe flange in which jaw assemblies reach around a ship's pipe flange to engage the flange and draw the coupler into sealing engagement therewith. Provisions are made for perfecting a seal with misalignment of the coupler and the ship's manifold and for quick release of the coupler from the manifold in the event of emergency.

An optical coupler comprises at least two waveguides (4,5) arranged so that light couples from one to the other. The waveguides are dissimilar and support different mode fields, and the composition or geometry of the waveguides is varied to determine the particular critical phenomenon characteristic that is required.

An optical coupler including: a substrate; a cladding layer formed on the substrate; and a slab waveguide formed on the cladding layer, wherein the slab waveguide comprises a first waveguide area on which a laser beam is incident and a second waveguide area having an incident surface capable of converging and outputting the laser beam passing through the first waveguide in a width direction. The optical coupler may optically couple one of an optical fiber and a laser diode with the slab waveguid...

A quick coupler for attaching implements, such as buckets or other tools, to heavy equipment, such as backhoes and excavators, which includes two recesses or channels for receiving a pair of machine pins of an implement. A hydraulic piston actuates a first locking lever to enclose one of the pair of machine pins in one recess and a second locking lever to enclose the other one of the pair of machine pins in the other recess.

A directional coupler with two sensing conductors and a basic coupler and a supplementary coupler corresponding to them. The basic coupler is based on the coupling between a first sensing conductor (421) and the transmission conductor (410), and the supplementary coupler is based on the coupling between a second sensing conductor (422) and the transmission conductor. The sensing conductors are substantially shorter than a quarter wave, because of which the directivity of both the basic and the s...

A directional coupler includes a laminate including a ground electrode substrate, a dielectric substrate that includes line electrodes thereon, a lead-out conductor substrate that includes lead-out conductors of the line electrodes, a ground electrode substrate, and a protection substrate. External electrodes for grounding, external electrodes for a main line, and external electrodes for a subordinate line are provided in the laminate. The inner line electrode and the outer line electrode prefer...

The invention relates to a directional coupler comprising coupled lines, and a method for achieving coupling in a directional coupler under compensation conditions. The directional coupler comprises coupled lines (8, 9), including a first line (8) and a second line (9), and at least one ground plane (10, 11, 13). At least one of the ground planes is a tuning ground plane (10, 11, 13), and a distance (14, 25), between the first(8) and the second (9) line, and each distance (15, 17, 26, 27), betwe...

A hydraulic coupler adapted to select the supply of fluid from a first source or a second source. The fluid selection is achieved by mechanically shifting a fluid selector with a male stab member that also supplies the second fluid source. When shifted, the fluid selector positively blocks the first fluid source and opens a hydraulic pathway for the second fluid source. When the male stab is disengaged, the fluid selector is pressure biased by internal and external pressure to a position allowin...

A coupler is used with umbrella strollers having tubular frames and four wheel assemblies. The coupler connects two unfolded strollers in a side-by-side position with a sufficient distance between them to prevent any contact between the wheel assemblies of the strollers. The coupler contains a receptacle having a set of three resilient C-shaped clips extending outwardly from each side wall for connecting the coupler to the strollers.

A directional coupler includes first and second dielectric layers, and an intermediate dielectric layer disposed therebetween. The first dielectric layer has one surface formed with a first coupling line, and the second dielectric layer has one surface formed with a second coupling line. Outside the first dielectric layer, there is a third dielectric layer with a grounding electrode on a surface thereof. Outside the second dielectric layer, there is a fourth dielectric layer with a grounding ele...