The present invention relates to an apparatus and method for securing a box cover to a watthour meter socket box. In certain embodiments, the apparatus has a clamping member that fits over a wall of a meter box, and a lock housing that locks to the clamping member after a box cover has been installed, thereby securing the cover to the box in a manner such that the box cover cannot be installed unless the clamping member has been installed correctly. In various other embodiments, the clamping member consists of a clamp disposed between a clamp actuating member and a fastening shelf. In various other embodiments, the clamp includes a stopping member for indicating when the clamp actuating member is actuated into a fully secured position. Other embodiments relate to a locking bracket and a lock housing wherein the locking bracket generally comprises a clamping member and a fastening lever that attaches to a wall of a meter box base. The lock housing generally comprises a unitary member with a perpendicular flange. The meter box lid is secured to the meter box base when the locking bracket is secured to the side wall (or another wall) and used in combination with the lock housing and a locking shaft.

The present invention relates to an apparatus and method for securing a box cover to a watthour meter socket box. In certain embodiments, the apparatus has a clamping member that fits over a wall of a meter box, and a lock housing that locks to the clamping member after a box cover has been installed, thereby securing the cover to the box in a manner such that the box cover cannot be installed unless the clamping member has been installed correctly. In various other embodiments, the clamping member consists of a clamp disposed between a clamp actuating member and a fastening shelf. In various other embodiments, the clamp includes a stopping member for indicating when the clamp actuating member is actuated into a fully secured position. Other embodiments relate to a locking bracket and a lock housing wherein the locking bracket generally comprises a clamping member and a fastening lever that attaches to a wall of a meter box base. The lock housing generally comprises a unitary member with a perpendicular flange. The meter box lid is secured to the meter box base when the locking bracket is secured to the side wall (or another wall) and used in combination with the lock housing and a locking shaft.

A probe holder for securely holding a probe within a certain location includes a base and a limiting block. The base defines a first receiving cavity having a bottom. The bottom of the first receiving cavity defines at least one first through hole penetrating the base. The first through hole is stepped for abutting the probe in one direction. The limiting block is disposed on the base opposite to the first receiving cavity. The limiting block defines at least one second through hole corresponding to the first through hole, the second through hole is also stepped and serves as a second abutting portion against the probe moving in an opposite direction. A test jig using the probe holder is also provided.

A probe holder for securely holding a probe within a certain location includes a base and a limiting block. The base defines a first receiving cavity having a bottom. The bottom of the first receiving cavity defines at least one first through hole penetrating the base. The first through hole is stepped for abutting the probe in one direction. The limiting block is disposed on the base opposite to the first receiving cavity. The limiting block defines at least one second through hole corresponding to the first through hole, the second through hole is also stepped and serves as a second abutting portion against the probe moving in an opposite direction. A test jig using the probe holder is also provided.

A laser etching method for MEMS probes belongs to the technical field of semiconductor processing and testing; first, the MEMS probe laser etching method performs the parameter calculation to obtain the step angle of the motor according to the etching spacing of the single crystal silicon wafer; then it performs the initial position adjustment to rotate the spiral through-groove plate to the initial position and move the first etching point to the optical axis, and adjust the four-dimensional stage; and then it performs the laser etching and progress judgment; and finally adjusts the four-dimensional stage and the motor, including the downward movement distance, left movement distance and clockwise rotation angle of the four-dimensional stage and the rotation angle of the motor; the MEMS probe laser etching method, combined with the MEMS probe laser etching device, not only has higher etching accuracy, but also continuously adjusts the etching spacing.

A plate spring-type connection pin is proposed. The connection pin includes: a support pin that has a bending lip portion at an upper portion thereof and a base portion at a lower portion thereof, and is vertically elongated; a plate spring that has an upper probe portion vertically extending adjacent to the lip portion, a lower probe portion disposed at the same height as the base portion, a laterally lying V-shaped portion disposed between the upper probe portion and the lower probe portion, an upper bending portion connecting an upper end of the V-shaped portion and a lower end of the upper probe portion, and a lower bending portion connecting a lower end of the V-shaped portion and an upper end of the lower probe portion; and a bridge that is disposed between the base portion of the support pin and the lower probe portion of the plate spring.

A plate spring-type connection pin is proposed. The connection pin includes: a support pin that has a bending lip portion at an upper portion thereof and a base portion at a lower portion thereof, and is vertically elongated; a plate spring that has an upper probe portion vertically extending adjacent to the lip portion, a lower probe portion disposed at the same height as the base portion, a laterally lying V-shaped portion disposed between the upper probe portion and the lower probe portion, an upper bending portion connecting an upper end of the V-shaped portion and a lower end of the upper probe portion, and a lower bending portion connecting a lower end of the V-shaped portion and an upper end of the lower probe portion; and a bridge that is disposed between the base portion of the support pin and the lower probe portion of the plate spring.

Provided is a vertical probe card, the vertical probe card includes: a printed circuit board (PCB) including a bottom hole and a PCB pad surrounding the bottom hole; a cover plate disposed on the PCB and including a cover hole, where the cover hole and the bottom hole are disposed coaxial with each other and form a receiving space; and a probe received in the receiving space. The probe includes a probe head passing through the cover hole to extend out of the cover plate and to contact with a chip, where an end, which is provided with the probe head, of the probe is a first end; and a protruding portion disposed in the mid-portion of the probe and in contact with the PCB pad, where a part between the probe head and the protruding portion of the probe and the protruding portion are conductors.

Provided is a vertical probe card, the vertical probe card includes: a printed circuit board (PCB) including a bottom hole and a PCB pad surrounding the bottom hole; a cover plate disposed on the PCB and including a cover hole, where the cover hole and the bottom hole are disposed coaxial with each other and form a receiving space; and a probe received in the receiving space. The probe includes a probe head passing through the cover hole to extend out of the cover plate and to contact with a chip, where an end, which is provided with the probe head, of the probe is a first end; and a protruding portion disposed in the mid-portion of the probe and in contact with the PCB pad, where a part between the probe head and the protruding portion of the probe and the protruding portion are conductors.

A winding head includes an annular magazine for storing the quantity of wire required to wind a torus, a first mechanism for driving the magazine in rotation, and a traveler for guiding the wire, at the output of the magazine, around the torus. The winding head includes a second mechanism, distinct from the first mechanism, for driving the traveler in rotation, such that the magazine and the traveler can be driven in rotation independently of one another.