Other

Shur-lok Corporation

Rohe Scientific Corporation

Charles S Phelan

Edward D O'Brian

Jacob R Fort

Edward J Kottsieper

Archie Kessell

Ralph Ranalli

A Sarrus linkage is a type of folding linkage or structure in which two opposed links are connected by two sets of connecting links, each of which sets includes two separate links. The links of such a linkage are hinged together in such a manner that the entire linkage will fold and unfold as any part of the linkage is moved with respect to the remainder of the linkage. By providing a control link which is pivotally connected to one of the opposed links and a motion transmitting link pivotally connected to the control link and to one of the links of one of the sets, a folding structure can be obtained which can be employed for a variety of useful purposes. Best results are obtained when two of the motion transmitting links are employed, one of the motion transmitting links being pivotally connected between a link of one of the sets and the control link and the other of the motion transmitting means being connected between a link of the other of the sets and the control link.

Folding structure employing a Sarrus linkage

An improvement to ultrasonic probes useful in the non-destructive testing of structural materials includes a compact, high-sensitivity coaxial design probe. The probe has a centrally located transmitter point and a circumferentially arranged receiver ring. The geometrical relationship between the transmitter point and the receiver ring provides for high-sensitivity in the detection of defects and allows for a compact construction without orientational sensitivity. A receiver tube is provided which encloses the probe and acts as a tuned wave guide for the detection of ultrasonic vibrations from the structural material under test. The increased sensitivity of the improved ultrasonic probe is advantageous in the testing of non-metallic structural materials having a complex composite structure. The compactness of the improved ultrasonic probe is advantageous in the testing of structural materials having complex and narrow shapes. The improved probe includes a transmitter assembly slidably mounted inside a receiver tube and spring biased to project from the receiver tube. The receiver tube includes an internally mounted separator wall which is acoustically coupled to a receiver transducer so that the receiver transducer is mounted behind the transmitter assembly.

Coaxial direct-coupled ultrasonic probe and method of non-destructive

A centrifuge for spinning sample containers about their respective axes with such axes vertical. An inlet elevator conveys the containers in groups to the level of a spinning means which simultaneously spins the containers of each group about their respective vertical axes. The groups of centrifuged containers are conveyed downwardly by an outlet elevator on the opposite side of the spinning means from the inlet elevator. The containers of each group are suspended from a carrier having keyhole-shaped openings, the containers having necks which are receivable in the smaller ends of such openings and which are provided with external annular flanges seatable on the carrier adjacent the smaller ends of the openings to suspend the containers from the carrier. The spinning means comprises cups into which the containers are lowered by downward movement of the carrier, the latter then being moved horizontally to dispose the container necks in the larger ends of the openings in the carrier. The cups carry centrifugally responsive means movable inwardly over annular shoulders on the containers to prevent upward movement of the containers out of the cups. The spinning means is programmed by a control means which includes a cam having means for decelerating the cups in accordance with a predetermined program to avoid remixing of the centrifuged samples in the containers.

Automated centrifuge

Growing community of inventors

Tustin, CA, United States of America

Charles S Phelan