Abstract: A permanent magnetic structure comprising a cylindrical body (15) and a termination structure (14, 12, 10). The cylindrical body (15) is composed of magnetic material causing a magnetic field and flux of magnetic induction. The cylindrical body (15) is oriented such that the interface between the cylindrical body 15 and the termination (14, 12, 10) is parallel to the magnetic induction and the cylindrical body (15).

Abstract: A magnetic field generating assembly comprises at least two counter-running, nested coils (31-33) positioned between and spaced from opposed pole pieces (42, 43). The pole pieces (42, 43) are mounted to a wall of iron (38-41) surrounding the coils, the walls providing a substantially closed magnetic flux path. The arrangement is such that forces on the coils (31-33) due to magnetic flux in the wall are substantially balanced. The gap between the coils (31-33) and at least one of the pole pieces (42, 43) is sufficient to accommodate a human body. The opposed pole pieces (42, 43) are non-planar so that when working currents flow in the coils (31-33) a magnetic field is generated in working regions (48, 49) situated in the gap between the coils and the pole pieces having homogeneities suitable for performing a nuclear magnetic resonance experiment.

Abstract: A deflection yoke liner for mounting deflection coils on a cathode ray tube; the liner has at least two interconnectable sections with interengaging snap fasteners in the form of a tab and block that position and fix together the liner sections. The tab has a stop or hook adjacent a distal end for clasping over the block. The block has an inlet groove for guiding the tab and thereby positioning the liner sections relative to one another. One of the groove and tab tapers inwardly and the other is complementary and tapers outwardly. Preferably the tapering sections of the groove and tab engage near a point of full abutment of the liner sections, by way of tapered shoulders at the proximal end of the tab and a narrowing inlet taper on the block. The liner sections are positively positioned as the tab is advanced in the groove until the hook snaps over the abutment upon bringing together the liner sections. The block can be discrete or formed by a continuous ridge.

Abstract: A coil assembly for an electromagnetic valve to be used in a vehicular hydraulic control circuit. The coil assembly includes an electromagnetic coil, a coil bobbin wound with the electromagnetic coil and having a flange, a terminal holder molded integrally with the flange of the coil bobbin, connection terminals fixed to the terminal holder, an insulating casing covering the coil bobbin and a terminal housing molded integrally with the insulating casing for covering the terminal holder and receiving the connection terminals to form a male connector terminal.

Abstract: A first set of three spherically or elliptically shaped coils is provided which generates a homogeneous linear gradient magnetic field in its interior. A second set of three spherically or elliptically shaped coils is located concentric to and in close proximity with the first coil set such that the fringing fields outside the second coil set are substantially zero. The coil sets can be separated at their equator and preferably are spherical in shape. The current distribution for each coil is described as well as the winding pattern on the surface of the first sphere which generates the perfectly homogeneous linear gradients inside the sphere. The second concentric sphere having a second coil set thereon which has a similar current distribution and winding pattern to the first coil set such that it will perfectly shield the inner sphere while reducing the linear gradient inside the first sphere by only a factor of 1-(R.sub.1 /R.sub.2).sup.5, where R.sub.1 and R.sub.

Abstract: A new structure of electromagnetic sucker comprising a sucker, a base, an intermediate plate and a solenoid in the form of a knockdown structure for the highest strength and precision and for even distribution of magnet force for the highest magnet attraction by using of the intermediate plate.

Abstract: An electromagnetic relay 38 (FIG. 2) includes a cylindrical core 42 concentrically positioned within a coil assembly 40 and press fit into a frame 50, a resiliently mounted armature assembly 56, and electrical contacts 66,68, one mounted on the armature assembly 56 and one disposed in a fixed relationship to the frame 50. The coil assembly 40 is secured to the frame 50 by the use of extrusions 54 which precludes the need for a core head 24 and crush ribs 26 (FIG. 1). After assembling the relay 38, the core 42 is positioned by pressing the armature assembly 56 directly opposite the core 42 until the core 42 travels a predetermined distance beyond the electrical contact point for the contacts 66,68. This invention ensures precise positioning of the functional components and negates the accumulation of manufacturing tolerances in the relay 38.