315 results about "Mechanical resistance" patented technology

Surgical instrument (1) comprising a longitudinal shaft (2) with a tip portion (3), a rear portion (4) and a longitudinal axis (5) and rotatable in the clock-wise and in the counter-clockwise direction around the longitudinal axis (5), said surgical instrument (1) further comprising: A) first means (6) for drilling a hole in a bone by rotation of the shaft (2) in one of the two directions; B) second means (7) for crushing bone tissue when the shaft (2) rotates in the other of the two directions; and C) a torque sensor (10) coupled to the shaft (2). Method for measuring the local mechanical resistance of a porous body comprising the steps of: a) drilling a hole to a desired depth into a porous body by advancing and rotating the shaft (2) in a first sense of rotation, preferably clockwise so that said first means (6) are active; b) hammering the shaft (2) gently further into the porous body as far as the tip portion (3) of the shaft (2) has reached a desired measuring position; and c) performing the torque measurement by rotating the shaft (2) in the opposite second sense of rotation, preferably counter-clockwise so that said second means (7) are active.

The subject disclosure is directed to systems, apparatuses, devices and methods for vertebral and spinal correction. In some embodiments, an expandable implant is provided which may be inserted inside the vertebral body and / or between two vertebrae, for instance, for maintenance and / or restoration of a space therein or there between. In certain embodiments, the implant includes a mechanical resistance that prevents the expandable implant from contracting once it has been expanded. Methods of treatment and methods of use of such implants for the alleviation of back pain (for example) are also provided herein.

It consists of a microcomponent comprising a cavity (13) delimited by a cap (12) enclosing an active part (10) supported by a substrate (11) The cap (13) comprises a top wall (12a) comprising stiffening means with at least one projecting stiffening member (12b) said stiffening member (12b) being located between two recessed areas (12c) of the top wall (12a) and having one end (14) at a distance from the recessed areas (12c) without coming into contact with the substrate (11).

A method for fabricating an electronic component with a self-aligned source, drain and gate. The method includes forming a dummy gate on a silicon substrate, in which the dummy gate defines a position for a channel of the component. The method also includes at least one implantation of doping impurities in the substrate, to form a source and a drain on either side of the channel, using the dummy gate as an implanting mask, superficial, self-aligned siliciding of the source and drain, depositing at least one contact metal layer having a total thickness greater than a height of the dummy gate, polishing the at least one contact metal layer stopping at the dummy gate, and replacing the dummy gate by at least one final gate separated from the substrate by a gate insulating layer, and electrically insulated from the source and drain. Further, depositing the at least one contact metal layer includes depositing a first metal layer and, above the first metal layer, a second metal layer having a greater mechanical resistance to polishing than the first metal layer. In addition, a thickness of the first metal layer is less than the height of the dummy gate, and a total thickness of the first and second layers is greater than the height of the dummy gate. Further, the first metal is chosen from among tungsten and titanium, and the second metal is chosen from among TaN, Ta and TiN.

Provided is a servovalve system for regulating fluid flowing within a fluid circuit. The servovalve system comprises a housing, a spool slidably disposed within the housing, a stepper motor operatively connected to the spool, and a controller and a position sensor electronically connected to the stepper motor. The controller generates driver signals representative of a desired amount of stepper motor rotation in order to cause the stepper motor to effectuate spool motion relative to the housing. The position sensor senses an actual amount of stepper motor rotation and generates a quantity of position signals representative thereof. The controller determines a signal ratio of the quantity of the position signals to the quantity of the driver signals and generates a diagnostic signal when the signal ratio reaches a threshold value representative of a predetermined level of mechanical resistance of spool motion relative to the housing.

The invention relates to a method for controlling the movement of a wiper blade over a wiping surface, including the steps of moving the wiper blade up and down over the wiping surface between a lower turning position and an upper turning position, detecting a requirement to stop the wiper blade, moving the wiper blade downward into a lower end position and from there upward into a first parking position in the event that a reversing signal is present, and stopping the wiper blade. To this end, the wiper blade is moved into the lower end position only if previously thereto low mechanical resistance against the movement of the wiper blade over the wiping surface was determined.

The present invention provides a system for generating an end of travel feedback to the driver of a vehicle where the vehicle includes a steer by wire system. The system includes a steering wheel, a steering shaft, a motor, and a clutch. The steering wheel is configured to control the steer by wire system. The steering shaft is coupled to the steering wheel and rotates in conjunction with the steering wheel. To provide road feel resistance to the driver, the motor is coupled to the steering shaft. Further, the clutch is configured to mechanically couple the steering shaft to the road wheel to provide mechanical resistance when the road wheel is at an end of travel position.