Work Files Saved Searches
   My Account                                                  Search:   Quick/Number   Boolean   Advanced       Help   

 The Delphion Integrated View

  Buy Now:   Buy PDF- 11pp  PDF  |   File History  |   Other choices   
  Tools:  Citation Link  |  Add to Work File:    
  View:  Expand Details   |  INPADOC   |  Jump to: 
 Email this to a friend  Email this to a friend 
Title: US6896283: Aircraft tug hitch assembly
[ Derwent Title ]

Country: US United States of America

View Images High


11 pages

Inventor: Williams, Jr., Thomas M.; Durham, NC, United States of America 27704

Assignee: None

Published / Filed: 2005-05-24 / 2003-07-22

Application Number: US2003000624323

IPC Code: Advanced: B60D 1/02; B60D 1/28; B60D 1/36;
Core: B60D 1/00;
IPC-7: B60D 1/00;

ECLA Code: B60D1/02; B60D1/28; B60D1/36B;

U.S. Class: 280/515;

Field of Search: 280/508,515,514,477

Priority Number:
2003-07-22  US2003000624323
2002-07-22  US2002000397243P

Abstract:     An aircraft tug hitch assembly includes deflectable guide plates providing a converging pocket for mechanically positioning a tow bar eyelet with the hitch lock pin. The hitch includes a lock assembly including a lock pin is mounted on a slidable piston for operator controlled movement between a detented raised unlocked position and a lower locked position capturing the tow bar eyelet. An indicator ball carried by the piston is observable by the tug operator when the lock assembly is in the unlocked position, but is not visible in the locked position thereby confirming hitch status without the need for verbal communication with ground personnel.

Attorney, Agent or Firm: Mills Law Firm PLLC ;

Primary / Asst. Examiners: Morris, Lesley D.; Royal, Jr., Paul

INPADOC Legal Status: Show legal status actions

    This application claims the benefit under 35 USC 121 of U.S. Provisional Application No. 60/397,243 filed on Jul. 22, 2002 in the name of Thomas M. Williams, Jr. and entitled “Aircraft Tug Hitch Assembly”.

Family: None

First Claim:
Show all 11 claims
    1. An aircraft tug hitch assembly for coupling an aircraft tug to an aircraft tow bar having a hitching aperture at one end wherein said tug has a hitch at the rear thereof including upper and lower plates vertically spaced at a rearwardly opening horizontal slot for receiving said one end of the tow bar said upper and lower plates having coaxially aligned openings, said aircraft tug hitch assembly comprising: a locking assembly having a mounting plate fixedly connected to said upper plate and having an opening aligned with said openings in said upper and lower plates; a cylinder having a bore coaxially with said openings in said plates; a cylindrical piston slidable in said bore; a cylindrical locking pin slidably coaxially attached on a lower end of said piston in coaxial alignment with said opening in said plates and freely slidable between a lowered position extending through the openings in the plates and a raised position spaced above said horizontal slot; a vertical slot is formed in said cylinder; a transverse pin member attached to said piston and extending outwardly through said vertical slot; a notch in the upper portion of said cylinder adjacent said vertical slot; and means for rotating said piston and positioning said pin member at said notch to establish said locked position; a transversely extending handle pivotally connected to said locking assembly, said handle engaging said pin member at middle portion thereof for moving said pin from said lowered position to said raised position; a pair of laterally spaced inwardly converging guide members carried said horizontal slot on said hitch, said guide members defining a receiving pocket aligning said one end of said tow bar with the openings in the plates and permitting movement of said locking bolt from said raised position to said lowered position to couple the tow bar to the tug, said guide members; means for pivotally supporting said guide members at inner ends to said locking assembly; spring means engaging and biasing said guide members to a normal position establishing said pocket, said spring means enabling resilient deflection of said guide members from said normal position upon impact by said tow bar sufficiently to permit said tow bar to orient transverse to the tug and accommodate tight radius turns.

Background / Summary: Show background / summary

Drawing Descriptions: Show drawing descriptions

Description: Show description

Forward References: Show 1 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (1)   |   Backward references (8)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 3pp US2478736  1949-08 Balzen   Vehicle coupling
Get PDF - 4pp US2844390* 1958-07 Smith    
Get PDF - 3pp US3046037* 1962-07 Cain    
Get PDF - 3pp US3161422  1964-12 Wade   Hitch assembly
Get PDF - 12pp US3889979  1975-06 Schmiesing   Automatic hitching device
Get PDF - 8pp US3912302  1975-10 Patterson   Self-coupling hitch
Get PDF - 8pp US5037123  1991-08 Smith   Automatic trailer hitch
Get PDF - 23pp US5286050  1994-02 Stallings et al.  Unlimited Solutions, Inc. Hitch for trailers
  * some details unavailable
Foreign References: None

Continuity Data:
Application Number Filed Notes

US2003000624323 2003-07-22  is a non-provisional of provisional
US2002000397243P  2002-07-22

Inquire Regarding Licensing

Powered by Verity

Plaques from Patent Awards      Gallery of Obscure PatentsNominate this for the Gallery...

Thomson Reuters Copyright © 1997-2014 Thomson Reuters 
Subscriptions  |  Web Seminars  |  Privacy  |  Terms & Conditions  |  Site Map  |  Contact Us  |  Help