Copper cored intercell connecting elements which pass through cell partitions are welded on either side to upwardly depending posts from plate connector straps. The connector portion has a flange on one side of the partition and threading through to the other side, on which a washer-nut is tightened. Sealant is supplied in and around the cavity between the flange, the partition, and the washer-nut by means of a channel down through the partition from the top thereof.

A punch-through semiconductor device having three regions of alternate conductivity types which exhibit punch-through conduction characteristics similar to the breakdown characteristics of a Zener diode when a voltage equal to the punch-through voltage magnitude is applied across the device. The device is formed on a single semiconductor crystal for use in a number of different circuits requiring output characteristics similar to those of a Zener diode.

A straight-through filter apparatus suitable for use in the handling of spent filter elements without contacting the ambient atmosphere. The apparatus is provided with a cylindrical housing having an upper and lower multi-positionable valve at each end of sufficient clearance to enable the passage of a filter element therethrough. Suitable filter media, for example three serially connected filter elements, are longitudinally arranged in the housing with the separation of contaminants of increasi...

A conductor having a plurality of continuous peripheral recesses is received within a tubular member, the internal surface of which member is also provided with a number of recesses. Resilient seals are located in certain, but not all, of the recesses. These seals are of such dimensions as to extend above the surface or outwardly of their associated recesses, as the case may be. An encapsulant or molding material is provided, filling the space between the conductor and the tubular member. The se...

This invention relates to a cosmetic package of the type including a backing card and a transparent cover sheet spaced at least partially away from the backing card to provide a chamber for the cosmetic compact being displayed, an improvement enabling the visual observation of the actual color and shade of the cosmetic which comprises: a cosmetic compact disposed in said chamber with said cover adjacent said transparent cover sheet, said compact including a base and cover being molded from resil...

Method and apparatus for emplacing a bridge plug through tubing in a well penetrating subterranean formations characterized by the following plurality of steps, without requiring removal of the tubing. A dump bailer containing cement slurry and a covered fabric bag and locking dogs are run downwardly through tubing to the predetermined depth. Dogs are released for holding. A cover is lifted from around the fabric bag, and the cement slurry is dumped via a collapsible fill tube to fill the bag to...

Infra-red images are projected onto an infra-red detector whose output is amplified, linearized, digitized and displayed as a numerical value corresponding to the temperature of the object viewed by the infra-red optical system. The optical axis of the infra-red optical system is coaxial with the optical axis of a visible light optical system which is used for sighting and aligning the field of view of the infra-red optical system with the object. Through the eyepiece of the visible light optica...

A through the flowline or "TFL" tool selector has a base provided with a number of spaced flowline ports and a diverter tube shiftably mounted in a housing for selective communication with the flowline ports. The diverter tube is actuated by a reciprocable and rotatable piston and cam drive which shifts the diverter tube progressively from one flowline port to another. The piston is shiftable in a cylinder to which pressure fluid is supplied and then exhausted to effect actuation of the cam driv...

A dual orientation feed-through terminal block capable of being mounted selectively in either one of two orientations and including an electrical terminal member affixed in the block and having a contact extending through a slot in the block, the contact being permanently deformable into remains affixed in the block, to provide a feed-through in a direction appropriate to the selected mounting orientation.

There is disclosed herein an improved see-through sewing gauge comprising a gauge means for controlling the depth of a stitch during a sewing operation and having a window portion disposed therein adapted to cooperate with an opening provided in an associated throat plate so as to enable an operator to continuously monitor the condition of the bobbin thread supply disposed below said gauge. The gauge and window combination is movably secured to the throat plate of the sewing machine in such a ma...