A container which could be used to store drugs, chemicals, poisons and other harmful substances, having a safety and "child-proof" closure comprising an insert, sometimes called a bung or plug, which is screw threaded into the opening in the container making it air tight and liquid tight and a cap screw threaded onto the container over the insert whereby both the cap and the insert has to be removed to dispense the contents. To make it more difficult, the insert may be tightly screwed into the o...

A rectangular tubular carton having an adhesively bonded, four-flap top closure incorporating a tape handle in combination with tape end accommodating receptacles in the carton's flaps whereby improved anti-sift sealing of granular materials and the like is effected.

A wastebasket comprising a container has a suspension frame or plate detachably mounted on the outside of the rear wall of the container and provided with a hinged lid therefor. For mounting a bag of plastic foil in the container a plurality of such bags being provided as a storage roll of a continuous bag web from which bags may be torn off along a transverse perforation, there are provided two members located at each one of the rear corners of the container spaced from a plane which is determi...

An umbrella having a tubular stem, a handle member housing a power source attached to one end of the tubular stem, and an electric lamp mounted on the other end of the tubular stem, at the top of the umbrella. Water-proof seals are provided at each end of the hollow tubular stem by a solid terminal plug press-fitted into a synthetic resin sleeve which in turn is press-fitted into the tubular stem.

The pistol of this invention incorporates a fire control group of an enblock type removably mounted in a receiver and having a housing extremity engaging the receiver at a location remote from a hammer pivot axis, a slide reciprocably mounted on the receiver, and a barrel operated by the slide and having a downwardly projecting lug, the lug being received for limited captured movement in the frame between longitudinally spaced vertically offset limit positions, and a pair of camming pins longitu...

Footwear including a portion having a layer comprising a temperature or pressure sensitive liquid crystal system which changes color when the footwear flexes, as when the wearer walks. Footwear made at least partly of a transparent plastic material is preferred.

Blister card receives soft, pliable article in unattached condition and blister cover is sealed to card with integral protuberances extending from cover into engagement with article pressing article against card to retain article in position on card. Other protuberances may be heat sealed to card for caging small, loose articles between protuberances.

A clamp having as an improvement, removable devices adapted to hold mitered joints. The clamp may be removably fixed to a bench by novel holding means.

A multiple null bridge has more than two parallel branches, all of the branches being divided into two series portions of predetermined resistance ratio, except the first branch which contains a known resistance and means for connecting an unknown resistance in series with the known resistance. High input impedance d.c. null-detecting amplifiers all have one input terminal connected between the known and unknown resistance in the first branch with the other input terminal of each amplifier being...

In a process for the production of an electret composed of a high molecular weight base material by applying to the base material a high D. C. potential at a high temperature, cooling the material while continuing the application of the potential, and then removing the electric potential, the improvement which comprises covering the opposite surfaces of the base material before polarizing the base material with thin films of a different high molecular weight material having a higher electrical i...