Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Apparatus and method of railroad tie replacement










Image Number 6 for United States Patent #7571681.

Disclosed is a method and apparatus for the simultaneous removal of an old railroad tie that is part of an existing railroad tie with a new railroad tie. The apparatus includes a first railroad car that places a new tie adjacent to the existing railroad track, a second railroad car which picks up and removes an old railroad tie after it has been replaced with the new railroad tie, and a third railroad car located between the first car and second car which has a hydraulic actuator that uses the new tie to simultaneously push out the old tie from under the railroad track and place into position the new tie. The first car has a conveyor that removes a new tie from the first car and places it in a location that is end-to-end adjacent to the old tie. The third car, using the hydraulic actuator takes the new tie and uses it to push the old tie out from under the railroad track and simultaneously place the new tie in proper position. The third car also includes a railroad track lifting frame which can lift the railroad track underneath the third car a slight amount.








 
 
  Recently Added Patents
Piezoelectric ultrasonic transducer apparatus
Focus information generating device and focus information generating method
Use of physical deformation during scanning of an object to generate views of the object
Process for producing liquid crystal element, and liquid crystal element
3D image generating method, 3D animation generating method, and both 3D image generating module and 3D animation generating module thereof
Integrated circuit package system with bonding lands
Stackable clothes drying apparatus
  Randomly Featured Patents
Web slitting apparatus having adjustable lower cutting blades
Playing card
Portable image input device
Utilization of oxygen in leaching and/or recovery procedures employing carbon
Header assembly
Addition-curable silicone gel composition
Dust collecting mechanism
Cardiac pacing/sensing lead providing far-field signal rejection
Hierarchically organizing network data collected from full time recording machines and efficiently filtering the same
Combined resilient sole of a shoe