The present invention relates to an improved magnetic marker and method for manufacturing same. The marker includes a ribbon of magnetic signal material of relatively low coercivity having coupled thereto at least two control elements of a ferro-magnetic material which may be permanently magnetized by a control signal in order to saturate the strip of first ferromagnetic material, thereby preventing the first ferromagnetic material from generating higher order harmonics when interrogated by a pe...

A permanent magnet coupling having opposed magnetic coupling members, and including process fluid bearings and dual flow paths for process fluid providing temperature control.

The present invention utilizes high magnetic flux materials to substantially increase the power which can be transmitted from a magnetic driver, disposed outside of a vessel containing a fluid being processed, to a magnetically responsive agitator means disposed inside the vessel. This invention now enables the agitation, e.g., mixing, blending, etc., of fluids processed in the pharmaceutical, chemical and food processing industries, where relatively high torques are encountered, by non-contamin...

A mount for holding and varying the position of a magnetic transducing head assembly comprises a pair of stiff but flexibly-hinged leaves arranged in a parallel-motion linkage. In application to a rotating head-mounting drum, the axis of each hinge is arranged to be parallel to the line of effective action of centrifugal force upon the movable portion of the mount, so as to neutralize the centrifugal force effect upon the movement of the linked leaves.

A magnetic auger in the form of a cylinder having one or more magnetic helices in the surface thereof is disclosed for transporting ferromagnetic particles such as toner particles used in magnetography.

A magnetic transducer head has a plurality of magnetic laminations secured together in stacked relation to each other to form a magnetic core having a pair of pole faces disposed in spaced, facing relation to each other with a small gap therebetween and to define other surfaces of the core adjacent to the gap which are adapted for sliding engagement with the magnetic surface of a recording tape. Electrical coil means are inductively coupled to the core. Alternate magnetic laminations of the core...

A magnetic contactor characterized by stationary and movable contacts with the stationary contact comprising at least two contact sections including a pivot section for limited movement toward the movable contact. The pivot section is mounted on a pivot edge of a first conductor and is spring biased against the pivot edge and in a position of limited movement. The movable contact is mounted on a support lever which is pivotally mounted to effect limited vertical and horizontal movement of the mo...

An improved magnetic separator for effecting high efficiency collection of magnetics contained in solution and slurries. The separator comprises an enclosed magnet space having inlet and outlet ports for flowing therethrough of the slurry to be treated, a porous ferromagnetic material contained in the space, and means to establish in the space a magnetic field by a closed magnetic circuit, the lines of force of which are substantially all contained within the said magnet space.

Amorphous metal alloys are employed in a magnetic head as core materials in the present invention. Such alloys are generally composed of M and Y, wherein M is at least one of Fe, Ni and Co and Y is at least one of P, B, C and Si. The amorphous metal alloys used are marked by a combination of the desirable properties of conventional permalloy with those of conventional ferrites.

A magnetic display comprising, between two magnetic field permeable substrates, a ferrofluid and metal flakes, one of the substrates being provided with one or more selectively energizable electro-magnets.