Abstract: A pneumatic stapler has a main body internally loaded with straight staple-forming wires and including a staple-driving and a wire-bending control chamber. A staple-driving element carrier is movably mounted in the staple-driving control chamber and divides the latter into a first and a second staple-driving gas flowing space. When the staple-driving element carrier moves in the second staple-driving gas flowing space to push one staple out of the main body into a workpiece, the initially isolated first staple-driving control chamber is now communicable with the wire-bending control chamber, allowing part of the gas supplied to the pneumatic stapler to flow into the wire-bending control chamber and move a wire-bending element mounted therein to bend one staple-forming wire into a staple. Therefore, the pneumatic stapler requires only one pressure source to complete both staple-driving and wire-bending operations and can have more staple-forming wires loaded therein to provide high convenience in use.

Abstract: A mechanical vehicle supplementary system includes a bracket including top mounting members for fastening to a bottom side of a vehicle, a first sleeve and a second sleeve respectively located at two opposite ends thereof and first and second elastic members respectively mounted in the first and second sleeves, a first support bar having one end axially slidably supported on the first elastic member inside the first sleeve and an opposite end disposed outside the first sleeve and equipped with a first wheel supportable on the ground, and a second support bar having one end axially slidably supported on the second elastic member inside the second sleeve and an opposite end disposed outside the second sleeve and equipped with a second wheel supportable on the ground.

Abstract: A safety syringe structure includes a plunger having two ends respectively forming first and second push sections. The first push section is provided with a cover that includes a peg extending therefrom. The peg has a distal end forming a retention element and is combinable with a connection member that has an opposite end forming a hollow tube. The connection member includes a constraint hole formed therein and in communication with the outside. The constraint hole includes a stepped section formed therein. The peg includes an elastic element fit thereto and is insertable into the constraint hole such that the retention element is in abutting engagement with the stepped section. A barrel that has an interior forming a receiving space has a top end face forming flanges extending therefrom and a bottom end face on which a hollow mounting section is mounted for receiving a needle mounted thereto.

Abstract: An improved toothbrush includes a head, which has a surface on which multiple bristles are mounted. The head has an end on which a shank is formed. The shank has a lower end on which a first coupling member is formed. A handle has upper and lower ends, which are respectively formed with a second coupling member and an opening. The second coupling member is engageable with and coupleable with the first coupling member. The handle has a first receiving chamber formed therein and in communication with the opening. A first lid is detachably mounted to and covers the opening. The handle includes a press-down section formed in each of a front end portion and area end portion thereof, such that the press-down sections correspond to the first receiving chamber.

Abstract: A roll staple manufacturing process enabling production of a high yield of staples at an effectively reduced manufacturing cost including the steps of providing a wire strip consisting of multiple wires arranged side-by-side; holding the wire strip in place with a holding unit; cutting the wire strip with a staple forming module to provide multiple staple banks; using a push module to push the staple banks from the holding unit to a guide rail set; applying an adhesive element to the staple banks while the same are continuously moved forward by the guide rail set; using a counting element to count the wires of the staple banks passing therethrough, and cutting the staple banks with a cutting element when the number of the wires passed through the counting element reaches a preset value, so as to provide a staple strip; and winding the staple strip on a winding element to form a roll staple.

Abstract: A hand-operated coil stapler includes a main body having a linkage system provided therein; a staple driving mechanism assembled to a front end of the main body and including a complex staple driver; a pusher and magazine assembly connected to a bottom of the main body and including a push rod having a staple-pushing spring fitted therearound; and a coil staple unit formed of bar-shaped staples. When the main body is downward pushed, the linkage system brings the complex staple driver to bend and drive a first staple of the coil staple unit into a workpiece. Meanwhile, the complex staple driver comes into contact with the push rod and forces the latter backward to compress the staple-pushing spring. When the main body is released, the staple-pushing spring elastically moves the push rod forward, bringing a subsequent staple to a position below the complex staple driver for a next stapling operation.

Abstract: An automatic gain control device includes a variable-gain amplifier, a power detector, a gain control unit and a frequency response unit. The variable-gain amplifier is implemented for determining a gain according to a gain control signal and generating an amplified signal by amplifying a received signal according to the gain. The power detector is implemented for determining a power of a frequency response result and accordingly outputting a detection result. The gain control unit is implemented for outputting the gain control signal according to the detection result. The frequency response unit is implemented for performing a frequency response operation on the amplified signal to generate the frequency response result.

Abstract: A manual hammer tacker having a warning device involving an electric box having a buzzer or a light emitting diode (LED), and at least one battery with both conducting to each other by the electric wires to generate sound or light effect when only few U-shaped staples left during the working process. A reed switch is installed in the tacker and locates near the end route of the U-shaped staples, and is also conducted to the buzzer or the light emitting diode (LED), the battery and the metallic shell by the electric wires. Furthermore, a reed is formed on the pushing guide of the pusher assembly. At the moment when only few staples left, the reed on the pushing guide will be touched with the switch, so that the circuit will become a circuit loop and the buzzer will buzz or the light emitting diode (LED) will glitter to remind the user to reload the staples.

Abstract: An integrated television tuner, which enhances image rejection by employing a filter device between the first mixing and the second mixing operations in a dual-conversion architecture. Signal selectivity is improved and linearity requirement on following stages is reduced.