Quotables
"I hate what they've done to my child...I would never let my own children watch it. "
Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 7309050 | Grooved rail core piece A grooved rail core piece including a core piece intersection area formed by intersecting grooves as an overflow area. The core piece has two construction profiles with interconnected outer fishing surfaces (22,24) extending in a longitudinal direction. In or... | 12/18/2007 |
| 6994299 | Railroad crossing apparatus having improved rail connection and improved flangeway floor geometry and method incorporating the same An improved railroad frog, and method incorporating the same, for facilitating the intersection of rail lines in a more efficient, effective, and durable manner. In one aspect the invention is a railroad frog apparatus comprising: a body having flangeways that inter... | 02/07/2006 |
| 5653408 | Direct support frog assembly A direct support type of rigid railbound railroad trackwork frog assembly is provided with a core frog casting, a pair of compliant, non-metallic spacer elements contacting laterally opposed sides of the core frog casting, a pair of wing rails respectivel... | 08/05/1997 |
| 5522570 | Rail section Rail construction including laterally adjacent frog sections with guard rails outwardly spaced to each side thereof by interposed liners. The components are interconnected by a transverse tightened bolt with vertical misalignment precluded by either nesti... | 06/04/1996 |
| 5496004 | Direct support frog assembly A direct support railbound frog having a frog casting clamped between a pair of wing rails and freestanding such that all wheel loads imposed on the frog casting primarily pass directly to the bottom surface of the casting without passing through the wing... | 03/05/1996 |
| 5393019 | Railroad turnout frog with continuous running surface An improved railroad turnout frog with a continuous running surface is provided. The frog provides for continuous running of the rolling stock and includes a mobile point with a triangular shape. The mobile point is located in a portion of the frog which ... | 02/28/1995 |
