Other

Hughes Electronics Corporation

Robert U Johnson

Michael Nolan

Richard W Gehle

Miguel A Estevez

Terry R Denardo

John J Sennikoff

Patrick N Costantini

Karl J Sakowski

Russell Watkins

Dru D Hartranft

Clarence Douglas Reddell

A single surface reflector antenna and method for making same comprises a plurality of hat-shaped cross section ribs formed on the back surface of a reflector shell with flexible tooling. All antenna shell and backing structure components are comprised of triaxial weave graphite laminate layers thereby allowing the backing structure to conform precisely to the shape of the antenna shell when cured and heat cycled.

Self-forming rib reflector

An angle measuring instrument provides two straight arms connected at one end for relative pivotal movement. A telescoping assembly includes two elongated telescoping members each providing a free end. The free end of one telescoping member is pivotally connected to one arm and the free end of the other telescoping member is connected to the other arm. The telescoping members provide scales indicating the angular position between the two arms, the distance between the pivots of the free ends of the telescoping members on the arms, and a correction to be added to or subtracted from measurements along the length of the arms to establish distances from the corner which is being measured. The two arms can pivot through a full 360 degrees relative to each other, permitting the measurement of inside and outside corners of all sizes. A straight edge is removably mounted on one of the arms when measuring outside corners. A level is provided to establish the position of one of said arms relative to a horizontal direction.

Angle and distance measuring instrument

A pair of bi-fold assemblies includes a lock for securing the assemblies in a closed position. The lock includes a latch bolt mounted on a panel of a first assembly, and a base plate of a second assembly includes an extending portion with an opening to receive the latch bolt.

Lock for bi-fold doors and the like

Growing community of inventors

Ft. Wayne, IN, United States of America

Robert U Johnson