Bechtel Power Corporation

Patriark, Inc.

John H Kennedy

Flashing for channeling roof water

A short-range hand-held photogrammetry system consists of two cameras placed in rigidly fixed photographic positions at the remote ends of a hollow bar. The hollow bar mounting the cameras encloses a wiring harness between the cameras, has attached conventional solenoid actuated shutter closing devices and mounts two downwardly protruding handles for hand holding of the bar and attached cameras. At least one flash unit is wired in series serially through each shutter mechanism of each camera. Both shutters are normally closed and opened for each exposure. These shutters when opened for exposure each close a normally open flash circuit switch. The series connection of the flash actuator requires that both shutters must be opened at the same time for the flash to fire, thus freezing in the same instant of time the pair of stereo photographs, one photograph by each camera. Under each lens of each camera is placed a beam projector that is activated by a pushbutton switch on the back of the bar. Light beams projected by the beam projector are positioned to locate side terminators of the areas of overlap between the two cameras. Photographer reference to the point of beam impact enables a photogrammetric survey to be rapidly taken.

Portable photogrammetry system

The fluid throughput of a conduit is increased without increasing the power requirements or the size of the conduit by affixing to the inner surface of the conduit at least one airfoil located with its leading edge facing into the flow substantially at the beginning of rectilinear flow. The airfoil advantageously has a body portion, a head portion, and a tail portion wherein the body portion has upper and lower planar surfaces defined by substantially parallel planes, side portions defined by substantially parallel side planes which are substantially normal to the upper and lower parallel planes, the head portion has a bulbous portion extending substantially below the lower parallel plane and the tail portion extends substantially below the lower parallel planes but not as far below as the bulbous portion.

Growing community of inventors

Maumee, OH, United States of America

John H Kennedy