31results about How to "Harsh environment" patented technology

A cryogenic coupling device includes a valved receptacle and a valved nozzle. Rollers in an outer collar of the receptacle are received in helical channels along a collar of the nozzle. A notch or detent in each of the channels provides a vent position to vent fluid before the nozzle is fully disconnected from the receptacle. Interface seals on the nozzle include first and second annular seals that function as ice and containment scrapers, as well as fluid seals. The nozzle has a rotatable handle assembly, isolated from the fluid path, which provides easy connect and disconnect of the nozzle from the receptacle. The handle assembly includes a thermal break, and is easily removable from the nozzle, along with other parts of the nozzle and receptacle, for service and maintenance.

A magneto-optic sensor for oilfield application, the sensor (1, 1′, 101, 101′) receives an incident beam IB, IB_A, IB_B, IB_C, IB_D and comprises a polarizing element (3, 103) for providing a determined state of polarization beam and a Faraday rotator (4, 104) for providing a response beam having a modified state of polarization. The sensor provides a response beam (RB, RB_A, RB_B, RB_C, RB_D having an intensity dependent on an external magnetic field representative of a particular characteristic of a well-bore casing CC, CR applied on the Faraday rotator (4, 104).

An electronic digital controller, such as a load cell indicator, is disclosed in which a number of components, such as a circuit board, display, and keypad are placed within an enclosure, and the enclosure is bonded closed, such as using an adhesive, to render the enclosure watertight. The keypad is a touch sensitive, capacitive keypad with no moving parts, and it is housed behind a rigid panel. An optoelectronic transceiver allows for data exchange with an electronic memory device housed in the adhesively sealed enclosure and allows for data exchange and for updating or modification of software code housed therein. Other components, such as another circuit board, a power supply, and block connectors, are placed in an adjacent enclosure, and the circuit boards in the two enclosures are electrically connected. The power supply is preferably a potted AC power supply but may also include a battery.

A method for providing power to an artificial lift system includes providing at least two conductors, each conductor being an insulated conductor having insulating material surrounding such conductor. The at least two conductors are surrounded with a composite fiber jacket to form a power cable, the composite fiber jacket being an outermost member of the power cable and having a substantially smooth exterior surface. The power cable is connected to the artificial lift system such that a load of the artificial lift system is transferred to the composite fiber jacket of the power cable.

The planetary speed reducer specially for roller way includes flange, cabinet, the first and the second sun gears, the first and the second planet carriers, planet gears and hollow output shaft. The first and the second sun gears, the planet carrier and the hollow output shaft are coaxial; the first sun gear is connected to the output shaft of the speed reducer; the first planet carrier is connected to the second sun gear, and the second planet carrier is connected to the output shaft of the speed reducer; there are at least two planet gears around each of the first and the second planet carriers; and the first planet gears and the second planet gears are meshed to corresponding ring gear and sun gear.

A device for wirelessly monitoring well conditions includes a power including a first material attached to edges of at least one lever suspended about a central fulcrum, wherein the edges of the at least one lever are free to move about the central fulcrum, a frictionless movable object disposed inside the body of the at least one lever, wherein the frictionless movable object is free to move within the body of the at least one lever, and a second material that is fixed in position relative to the first material, wherein the first material and second material are of opposite polarities.

The invention relates to a production technology of a high-tenacity copper-clad laminated board with low CTE and high breakage voltage. The production technology of the copper-clad laminated board comprises the following steps: setting the formula of a resin glue solution, adjusting P sheet production parameters and adjusting a compression molding technology, specifically firstly sufficient and uniformly mixing raw materials of the formula of the resin glue solution used for producing the copper-clad laminated board, then gluing the uniformly mixed resin glue solution onto electronic grad glass fiber cloth, drying the resin glue solution on a vertical gluing machine to obtain prepregs, then laminating two to ten prepregs, then overlapping a copper foil, carrying out compression molding inside a vacuum pressing machine, and finally packaging the prepared copper-clad laminated board for shipment after the testing for the appearance and inner materials of the board is qualified. The boardafter compression molding manufactured through the production technology of the copper-clad laminated board has the characteristics of low CTE and high breakage voltage, and through modification of the formula, the tenacity and durability of the board are greatly improved, so that the PCB processing performance is greatly improved.

A fiber optic sensor including a fiber having a modified surface integral with the fiber wherein the modified surface includes an open pore network with optical agents dispersed within the open pores of the open pore network. Methods for preparing the fiber optic sensor are also provided. The fiber optic sensors can withstand high temperatures and harsh environments.

The invention provides an orthographic projection screen and a production method of a screen body thereof. The orthographic projection screen comprises a screen body which comprises a flat curing force layer made of PET (polyethylene terephthalate), an inner arc structure layer, a projection paint layer, a lusterless paint layer and a light absorption layer, the light absorption layer is arranged at the back of the flat curing force layer, the inner arc structure layer is arranged in the front of the flat curing force layer, one side, back to the flat curing force layer, of the inner arc structure layer concaves to form an inner arc, the projection paint layer is arranged on the side, and the lusterless paint layer is arranged on the projection paint layer.

A ductile alloy is provided comprising molybdenum, chromium and aluminum, wherein the alloy has a ductile to brittle transition temperature of about 300 C after radiation exposure. The invention also provides a method for producing a ductile alloy, the method comprising purifying a base metal defining a lattice; and combining the base metal with chromium and aluminum, whereas the weight percent of chromium is sufficient to provide solute sites within the lattice for point defect annihilation.