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
Apparatus for providing location information of hand-held device and method thereof
Automatic baroreflex modulation responsive to adverse event
System and method for seamlessly increasing download throughput
Method for releasing a locking in mobile terminal and mobile terminal using the same
Sealing member for piezoelectric resonator device, and piezoelectric resonator device
Aisle barrier
Downhole telemetry system
  Randomly Featured Patents
Mounting for the setting up of blinds
Non-aqueous electrolyte lithium secondary battery
Password protection
Process for improved preparation of treatment gas in heat treatments
Write splicing for helical scan recorder
Exhaust arrangement for a gasoline
Atomic layer deposition processes for the formation of ruthenium films, and ruthenium precursors useful in such processes
Volume control for an alert generator
Magnetic levitation weight reduction structure for a vertical wind turbine generator
Apparatus for uniformly illuminating a light valve