Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Device for scraping off deposits from internal surfaces of elongated tubes










Image Number 2 for United States Patent #4315541.

Device for scraping off a deposit from the internal wall surface of an elongated tube of relatively small diameter, comprising a helical coil spring which is installed inside the tube and adapted to be reciprocally movable and/or rotatable, said spring scraping off the deposit from the internal wall surface of the tube.








 
 
  Recently Added Patents
Synchronization processing circuit and synchronization processing method in wireless communication system
Method and apparatus for charging a power pack of a portable electronic device
System and method for improving text input in a shorthand-on-keyboard interface
Method and device for processing broadcast packets/multicast control messages
Wafer level packaging
Memory interface circuit, memory interface method, and electronic device
Systems and methods for implementing pressure sensitive keyboards
  Randomly Featured Patents
Computerized diagnostic and monitoring system
Magnetic head having PtMn layer formed by ion beam deposition
2'-OMe C.sup.AC phosphoramidite and methods for preparation and use thereof
Enhancements to multi-party authentication and other protocols
Apparatus for developing photoresist and method for operating the same
Vehicle with impact protection unit
Art-directable retargeting for streaming video
Image processor for processing high definition image signal and standard image signal and disk apparatus therefor
U.V. Curable poly(ether-urethane) polyacrylates and wet-look polymers prepared therefrom
Method of regulating the position of a clutch actuator