Resources Contact Us Home
Actuating device for use in powered screwdriver

Image Number 2 for United States Patent #5557990.

A powered screwdriver includes a tool head, a lower cylinder, a hollow shaft insertable through the lower cylinder, an upper cylinder engageable with the lower cylinder, a passage defined in the upper cylinder, a motor-driven axle insertable through the passage and engageable with the hollow shaft so that the hollow shaft and the motor-driven axle are slidable but not rotatable with respect to each other and an actuating device including a lower ring securely received in the passage, an actuator with a collar slidably mounted on the motor-driven axle and a tab radially extending from the collar and projecting through a slot defined in the upper cylinder, a spring mounted on the motor-driven axle, an upper ring securely received in the passage and a push-button switch mounted on the upper cylinder. When the powered screwdriver is pushed against a screw, the motor-driven axle is further inserted into the hollow shaft. The collar of the actuator is pushed by means of the hollow shaft. The push-button switch is pressed by means of the tab of the actuator.

  Recently Added Patents
Organic EL display device and method for manufacturing the same
Highly stable electrolytic water with reduced NMR half line width
System, method and computer program product for monitoring and controlling network connections from a supervisory operating system
Carbonyl-ene functionalized polyolefins
Method of forming a power supply controller and structure therefor
Thiocyanato or isothiocyanato substituted naphthalene diimide and rylene diimide compounds and their use as n-type semiconductors
Multi-dimensional credibility scoring
  Randomly Featured Patents
Image forming method and image forming apparatus for detecting a low level of toner
Conductive member, process cartridge having conductive member, and image forming apparatus having process cartridge
Apparatus and method for message routing using disparate communications networks
Process for recovering hydrocarbon
Monomeric and dimeric nucleosides with silyl-containing diamino phosphorous linkages
Tapered threshold reset FET for CMOS imagers
Plasma processing apparatus
Sash lock housing
Ionic molecular conjugates of biodegradable polyesters and bioactive polypeptides