An apparatus for maintaining a predetermined liquid level within a tank while effecting the continuous addition and removal of liquid within the tank. The apparatus is provided with a housing that mounts directly on a side wall of the tank with the housing extending on both sides of the wall, so that it is partially inside and partially outside the tank. The housing has a first passageway which receives fresh liquid from a pressurized supply and introduces a portion of the fresh liquid into the ...

A circuit arrangement for use with a scanned-beam moving-surface blemish detector uses the detection of leading-and trailing-edges of the surface in each scan to provide in the following scan a margin or margins, the separation of which provides a measure of the surface width over which detection can take place without the edges being detected as faults. In a modification the margins are extended to the direction of surface movement by introducing a minimum width, between leading-and trailing-ed...

A cable assembly having predetermined discrete locations for subsequent connectorization is provided. The cable assembly of the present invention includes at least one conductor which may be an optical fiber or standard electrical wire conductor or any other type of conductor. The cable assembly also includes at least one layer of protective coating over the conductor. At least one prescored area is formed in the protective coating during the manufacturing process to provide for ease of connecto...

Boot of the front entry type with variable volume having a shell that includes an upper and a shell base that overlap at least partially in the area corresponding to the dorsal zone of the boot, the upper being pivotally connected to the shell base. A bending mechanism is integrated in its dorsal zone where it is sandwiched between the upper and the shell base on which it is attached and rigidly affixed, and such bending mechanism is formed by a flexible strip that includes a vertical notch, ope...

Compositions comprising polyesters having predetermined monomeric sequence are produced by stepwise addition of monomeric hydroxyacids to a growing polymeric chain. Included herein are various polyesters having predetermined monomeric sequence, methods of their production use as well as articles formed from said compositions.

Polyesters having predetermined monomeric sequence are produced by stepwise addition of monomeric hydroxyacids to a growing polymeric chain. Included herein are various polyesters having predetermined primary sequence, various methods of producing polyesters having predetermined primary sequence, various articles formed from polyesters having predetermined primary sequence and various methods of using such articles.

A hypodermic syringe system for injecting a predetermined dosage of therapeutic fluid into body tissue of a living patient. A sealed capsule contains the fluid to be injected. A double ended hypodermic needle includes a first sharpened end for piercing engagement with the body tissue and a second sharpened end opposite therefrom for piercing engagement with the capsule. The capsule is disposed between the end of a plunger which is slidably engaged within a barrel member supporting the needle and...

A resistance strip heater includes a pair of elongated, mutually parallel electrical conductors or buses lying on a dielectric substrate. Each bus includes a conductive region extending toward the other conductor, and the locations of the conductive regions of the two buses alternate along the lengths thereof. An elongated resistance arrangement has its axis of elongation parallel to the buses, is physically supported between the buses, and is electrically connected to mutually adjacent ones of ...

Machine for filling containers with products, in a predetermined distribution includes simultaneous feed means, with as many vibratory ducts transporting respective rows of products and with corresponding unit supports thereof; at least one rotating frame with vertical pneumatic cylinders and with as many lower suction cups at their pistons, communicating with sources of vacuum; a carriage with alternating transverse displacement, with means of longitudinal advance for at least one pair of conta...

This disclosure relates to a semiconductor memory arrangement wherein data is preset in a memory array so that there is no need for a supplementary memory, such as a read-only memory, to store the data to be preset. Each memory cell of the semiconductor memory array is predisposed to assume a specific information state upon each application of power thereto. By biasing memory cells in this manner, the desired information is available either upon initial operation or upon the restoration of power...