Other

Western Electric Company, Inc.

Lehighton Electronics, Inc.

George L Allerton

Willard G Otto

A pill or tablet fracturing set including a striking device, a pill support board upon which the pill or tablet is struck by the striking device using a control grip, and a supply of transparent pill retentive bags to contain the pills while being struck.

Pill crushing device and system

An electrical contact assembly for use as a component of an automated system for testing electronic devices, such as silicon chips. The contact assembly comprises a ring element, a plurality of spring loaded contact probes, an elastic retaining band and alignment pins. The ring element has a plurality of holes that extend through the element from the top to the bottom surfaces, and a groove that encircles the ring element, extending inwardly from its outer peripheral surface, and connects through a small window with each hole. A spring loaded contact probe is positioned in each hole and has a small portion of its surface projecting into the groove through the window associated with each hole. An elastic retaining band is placed in the groove, and partially grasps a portion of the surface of each spring-loaded contact probe, where the surface thereof projects into the groove. Thus, the retaining band maintains each contact probe in position in the ring element, while permitting the contact probe to move in either direction without undue interference. The alignment pins extend outwardly from the bottom surface of the ring element to assist in positioning the contact assembly in an automated testing system.

Electrical contact assembly

The magnetic intensity in a succession of strips (12) in an article (10) is measured by producing relative motion between the article (10) and a magnetic sensing head (23) to produce a succession of first voltage waveforms. Each such waveform has a shape substantially characterized by the positions of the poles (13 and 14) in a respective strip (12). Each incremental portion of the shape has an amplitude proportional to the magnetic intensity sensed along the surface of the strip (12) and to the instantaneous speed of the relative motion between the sensing head (23) and such surface. By coupling a generator (31) to the article (10), a second voltage waveform is produced having a shape for each strip, wherein each incremental portion has an amplitude proportional to an instantaneous speed equivalent to the speed producing the first voltage waveform for the respective strip (12). The first waveform of a strip (12) is fed into the numerator input 'Z' of a dividing circuit (36) and, simultaneously therewith, the second waveform for the same strip (12) is fed into the denominator input 'X1' of the same circuit (36). Advantageously, the circuit (36) has a processing speed sufficient to produce a third voltage waveform of a shape wherein each incremental portion is independent of the speed of the relative motion and is faithful in amplitude and position to the poles (13 and 14) in each respective strip (12).

Growing community of inventors

Orefield, PA, United States of America

George L Allerton