A pipe-insulating process comprises extruding onto the pipe an insulating layer of rigid polyurethane (PU) foam and opt. an outer covering layer by using the rotational casting method. The PU foam is obtd. by reacting (a) an aromatic polyisocyanate with (b) a cpd. of mol.wt. 92-1000 contg. at least 3 NCO-reactive H atoms and (c) an aliphatic, cycloaliphatic or aromatic polyamine and/or polyimine c...

A disposable diaper (1) comprising a pair of cuffs (10) longitudinally extending on the inner surface of said diaper (1) along transversely opposite sides thereof across front and rear sections (6,7) as well as a crotch section (8) longitudinally interposed between these two sections (6,7), wherein each cuff (10) comprises a substantially crescent-shaped elastic sheet and is bonded in its longitud...

A disposable diaper (1) is provided with a pair of elastic cuffs (10) longitudinally extending along transversely opposite sides of the diaper (1) across front and rear sections (6, 7) as well as a crotch section (8), the cuffs (10) being folded back inwardly of the diaper (1) at intermediate regions of the respective cuffs (10) which extend outwardly from their fixedly bonded side edges, respecti...

Improved microphone performance is achieved by configuring a second-order derivative microphone assembly in such a way that radially divergent near-field input produces a microphone response proportional to a first-order spatial derivative of the acoustic pressure field.

Improved microphone performance is achieved by configuring a second-order derivative microphone assembly in such a way that radially divergent near-field input produces a microphone response proportional to a first-order spatial derivative of the acoustic pressure field.

A torsion bar assembly for a dishwasher door having a stainless steel torsion bar enclosed in an elongated stainless steel tube such that the bar rotates within the tube as the door is moved between an open and a closed position. One end of the bar and tube are fixedly disposed in a rectangular boss which is fixedly attached to the dishwasher door; and a second end of the tube and bar are releasab...

The present invention concerns a tool particularly suited for drilling with continuous lining, consisting of an external cylinder 1 having, in its upper part 2, two seats 3, appropriately contoured, engaging with two elements 12 and 13 pivoting at 8 and 9, provided at the head 5 of the mining tool 6, which are held in the engaged position by means of springs 10 and 11, the mining tool being outfit...

A method and an arrangement for the timing of digital signal transmission in a TDMA PON system including a line termination (OLT) to which a plurality of network units (ONU) are connected is described. Network units (ONU) are of the type where the high speed data flow (DATA) to be transmitted to the line termination (OLT) in the serial format, is previously organized in bytes which, according to t...

A device for positioning and blocking soles of footwear includes a table (26, 32) with an area for resting the sole, members (28, 29, 39, 40) for centering the sole disposed at least at opposite ends of the rest area and a vacuum operated device (44, 45) which suction the sole against the table to maintain it in the position imposed by the centering members. The adaptability of the work surface an...

An article of furniture which may be configured in the form of a crib, a youth bed, or an adult bed, wherein a crib structure is produced through the employment of a rear panel, a right side panel, a left side panel, a front panel and a first mattress support frame. The front panel comprises of a stabilizer bar and a gate. The gate is movable to permit greater access to the confines of the crib. T...

Vibration and shock resistance of alkaline batteries provided with a gel type negative electrode comprising a zinc alloy powder, a gelling agent and an alkaline electrolyte can be improved by using the following three gelling agents in combination in the gel type negative electrode, namely, a crosslinked polyacrylate type water-absorbing polymer having a dispersion viscosity at 25 DEG C of at leas...

A method and apparatus for separating from a mixture materials having different specific gravities which can operate in a continuous manner and can separate particles of materials of non-uniform grain size. Water or other fluid is passed upwardly through an apparatus having an upper funnel in which is disposed a rotatable agitator having vanes or paddles which pass close to riffles on the wall of ...