A film supporting frame structure suitable for use as a residential storm or insulating window, is assembled from frame members having upper and lower channels, and secured together by corner brackets having prongs which mate with the lower frame channels. The assembled frame is covered with a flexible film which is stretched and held securely in the upper frame channels by interlocking tee-members. To facilitate mounting, the frame is provided with a flange and a pressure sensitive resilient ad...

A hose that will withstand pressure and vacuum as well as resist kinking or collapsing in which the wall structure includes at least two radially spaced layers of monofilaments of textile material with a layer of elastomeric material separating the layers. Also at least one additional layer of a fabric of aramid fiber is included in the wall as additional reinforcement. Construction is of relative lighweight and may be readily adapted to a floating hose construction.

A self-supporting inflatable structure useful, for example, as an inexpensive, readily assembled planetarium, such structure being made of an extensible material having a plurality of panels, each shaped so as to form, when inflated, a hemispherical dome-like structure. A first channel, also made of extensible material is used to supply air, as from an inexpensive, conventional window fan for inflating the structure and a second channel permits the exit of such air in a controlled manner while a...

For use in an intrusion alarm system, transmitting and receiving transducer structures adapted for mounting at the ceiling or other surface of a protected enclosure and providing modified energy patterns. Each transducer structure has reduced sensitivity along the normal or boresight axis thereof, and increased sensitivity along axes angularly displaced from the boresight axis. Each transducer structure includes a resonant cavity terminating in an aperture, the geometric characteristics and dime...

A package is formed from paperboard for displaying an elongate generally cylindrical article such as a flashlight or the like. The package presents a trough-like structure which cradles the article. Abutment means formed in the package prevent movement of the article. A holding member retains the article against the package.

Structure for spot welding airport concrete steel mesh. The structure includes supports for supporting a plurality of longitudinally extending large diameter reinforcing rods in parallel spaced apart relation, structure for separately feeding individual, transversely extending reinforcing rods onto the longitudinally extending reinforcing rods at a welding position, a plurlaity of transversely aligned welding guns for simultaneously welding a transversely extending reinforcing rod to each of the...

A technique for fabricating a semiconductor heterostructure by growth of a ternary semiconductor on a binary semiconductor substrate from a melt of the ternary semiconductor containing less than saturation of at least one common ingredient of both the binary and ternary semiconductors wherein in a single temperature step the binary semiconductor substrate is etched, a p-n junction with specific device characteristics is produced in the binary semiconductor substrate by diffusion of a dopant from...

A plurality of winding units are each wound in winding channels formed in a bobbin. Each of the winding units include start and finish location conductor portions or termination leads or segments located at predetermined longitudinal and angular positions relative to the longitudinal axis of the bobbin. Longitudinally extensive connecting conductors are located inward of the bobbin outer surface. A plurality of passageways are formed in shoulders or partitions separating the winding channels. Th...

A low profile skylight structure having a curb member and a glazing cap joined together in a framework for supporting an insulated glass panel in which the glazing cap is joined to the curb member by concealed fasteners to avoid any visible fasteners or the like.

A clamping structure for clamping of tubes or similar elements comprising at least one clamping-shoe-receiving frame for attachment to a substructure, and at least one clamping shoe for receiving and retaining the element or elements to be clamped, said frame defining a space for receiving the clamping shoe or shoes. At least one spacedefining side edge of the frame, and a side of said clamping shoe or shoes facing said side edge, are provided with cooperating guiding means for lateral fixing of...