"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 6968768 | Slitting saw The disclosure describes a slitting saw used to cut an opening in a pipe. The saw generally comprises a housing mounted on an XYZ positioning system, a drive assembly and a cutting blade. A motor is used to drive a gear train which creates rotating of the cutting bl... | 11/29/2005 |
| 5495868 | Rotary vacuum-electric switch A shaft is rotatable in a housing to several detented positions, established by a detent wheel and spring pressed detent balls, and is provided with a pinion gear which drives a gear rack on a valve carriage guided for linear movement along a spacer. A ru... | 03/05/1996 |
| 5301708 | Rotary plug valve actuator and associated rotary plug valve and associated method A rotary plug valve actuator comprising a mounting bracket, a ball screw mechanism pivotably mounted to the mounting bracket and a lever pivotably mounted to the ball screw mechanism. The ball screw mechanism includes a ball screw shaft and a ball nut. Th... | 04/12/1994 |
| 5269339 | Sealed bonnet for actuating a quarter turn valve assembly A bonnet is provided for operating a quarter turn valve assembly. The valve assembly includes a valve housing formed to include a fluid-conducting passage therein and a quarter turn valve moveable in the passage to regulate flow of fluid through the passa... | 12/14/1993 |
| 5224829 | Rotatable valve having upper and lower parts A valve apparatus, in particular a rotatable valve comprising an upper part (10) and a lower part (6) which are demountably attached to each other. The valve's lower part (6) is mainly U-formed with sealing surfaces (17,18) arranged on the outwardly facin... | 07/06/1993 |
| 4910807 | Ratchet adjustment mechanism for bath waste and overflow systems In a trip lever bath waste and overflow system, a valve actuating linkage having a ratchet mechanism for easy length adjustment of the linkage. The ratchet mechanism includes a toothed rod which telescopes into a sleeve equipped with a wire clip serving a... | 03/27/1990 |
| 4905967 | Interface design of two clamped-together parts Two control valve housings each have a longitudinal bore receiving a valve spool. The housings are clamped together by two pairs of bolts located one on each side of the bores. Formed on one of the parts at the interface of the two parts and at opposite s... | 03/06/1990 |
| 4893645 | Control valve with improved dual mode operation and flow adjustment A control valve in which the bonnet is removably fixedly attached to the valve body by a retained bolt and slot arrangement in such a way as to fix the marginal edge of the diaphragm main valve therebetween. The diaphragm defines with the bonnet a control... | 01/16/1990 |
| 4836497 | Adjustable valve linkage A valve actuator mechanism for supplying a selectively adjustable close-off force to an associated valve. The mechanism comprises a means for urging the valve plunger into engagement with the valve seat with a predetermined initial force and resistive mea... | 06/06/1989 |
| 4727901 | Ball valve A ball valve device for subsea applications, capable of being dismantled for inspection and maintenance without disrupting normal operations of the pipeline and without causing leakage into or out of the pipeline is disclosed. The ball arrangement of the ... | 03/01/1988 |
| 4585025 | Mounting for a valve actuator An actuator is mounted on a valve body by a threaded nut. A ring gear on the nut is engaged by a manually operated spur gear for threading the nut on or off the valve body with a mechanical advantage.... | 04/29/1986 |
| 4546790 | Fluid valve The fluid valve comprises an integral housing made of forged steel, the housing having tubular end portions as fluid inlet and outlet, respectively, conical transition zones having a cone angle of at least 30°, and a central enlargement joined by said tr... | 10/15/1985 |
| 4387735 | Line removable valve structure with extensible seal rings on pipeline support structure A line-removable valve structure wherein a cartridge containing a movable valve closure member and seals is received in a line-support structure including a pair of rigidly interconnected end plates forming line flanges. With the cartridge in place, seat ... | 06/14/1983 |
| 4231389 | Removable operator for gate valves A pedestal extends upwardly from the body of a gate valve housing in a straddling relationship to the gate. An operator, detachably attachable to the pedestal, includes a hand wheel operating through a pinion gear to impart translatory movement to a verti... | 11/04/1980 |