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US 6,546,611 B1Granted
Rail car anti-spin door handle and installation method
AssigneePennsylvania Rail Car Company
InventorWalter S. Ryan
Life of this patent
Estimating the term…
Abstract
An anti-spin and drift device and installation method for railway plug type car doors that prevents unintentional rapid rotation of the center door operation handle caused by accidental movement of the door. The anti-spin device rapid rotation in both directions and replaces existing pinion gear assemblies and one-directional anti-spin assemblies that interlink the operational handle with the door operating mechanism that activates multiple crank rod assemblies for opening and closing the doors.
Claims11
A dual action anti-spin replacement method and apparatus for rail car plug doors comprises,
- a. removing a center door operating handle of a door opening and closing operating assembly
- b. removing an operational assembly cover plate secured to said rail car door
- c. remove and discard a pinion gear and drive shaft assembly that interengages a selector gear of the door operating assembly
- d. removing and retaining a first ratchet wheel engagement pawl pivotally secured on a pawl support shaft
- e. positioning a dual action anti-spin apparatus within said rail car door for engagement with said selector gear of the door operating assembly
- f. re-positioning said first ratchet wheel engagement pawl on the pawl support shaft for directional registration with a first ratchet wheel of said dual action anti-spin device
- g. rotatably position a second ratchet engagement pawl on said pawl shaft extension for directional restrictive registration with a second ratchet wheel of said dual action anti-spin assembly
- h. positioning a modified operational assembly cover plate on said rail car door
- i. secure an apertured dual action anti-spin cover plate onto said modified operation assembly cover plate in respective apertured registration with a activation drive shaft of said dual action anti-spin assembly and said pawl support shaft extension
- j. securing a center door operational handle onto said drive activation shaft and threadably position a lock nut onto the pawl support shaft extension.
7 more elements
Dependencies are inferred from the claim text.