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Title: US4114309: Toy helicopter
[ Derwent Title ]


Country: US United States of America

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6 pages

 
Inventor: Gay, Derek John; Rancho Palos Verdes, CA

Assignee: Mattel, Inc., Hawthorne, CA
other patents from MATTEL INC. (359100) (approx. 1,105)
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Published / Filed: 1978-09-19 / 1976-12-13

Application Number: US1976000749737

IPC Code: Advanced: A63H 27/133; A63H 29/04;
Core: A63H 27/00; A63H 29/00;
IPC-7: A63H 27/12;

ECLA Code: A63H27/12; A63H29/04;

U.S. Class: Current: 446/232; 446/475;
Original: 046/075; 046/047; 046/039; 046/001.H;

Field of Search: 046/74 R,75,78,82,84,69,48,49,50,51,52,39,40,47,59,1 H 244/17.11 192/41 S,92,89 R

Priority Number:
1976-12-13  US1976000749737

Abstract:     A toy helicopter having a hollow body member configured to simulate a helicopter with a main body portion and a tail section, the main body portion supporting a helicopter rotor on a shaft member extending through the roof thereof, the shaft being rotatably supported by a pair of bearings, with a reel portion configured in the shaft intermediate the bearings. The reel portion has encircled thereabout a flat constant torque coil spring acting as a spring clutch, the free end of the coil spring being secured to one end of a trigger member, which is pivotally secured within the housing. The main body portion is provided with a pair of aligned openings through which an operator can manipulate the trigger whereupon repeated pivoting of the trigger causes the shaft to continuously rotate in a given direction. The helicopter is also provided with a hand-operated winch and a water-squirting apparatus actuated by a second trigger.

Attorney, Agent or Firm: Mesaros, John G. ; Shirk, Max E. ; King, Stephen L. ;

Primary / Asst. Examiners: Mancene, Louis G.; Yu, Mickey

INPADOC Legal Status: None          Buy Now: Family Legal Status Report

Family: Show 9 known family members

First Claim:
Show all 6 claims
What is claimed is:     1. In a toy helicopter, the combination comprising:
  • a hollow body member configured to simulate a helicopter and having a main body portion and a tail section extending outwardly therefrom along a given line;
  • a shaft having simulated helicopter rotor blades secured to one end thereof;
  • bearing means including a first bearing extending through an aperature in the upper surface of said main body portion and a second bearing within said main body portion for rotatably receiving said shaft for rotation about an axis transverse to said given line;
  • a reel portion on said shaft intermediate said first and second bearings;
  • a spring clutch including a flat constant torque coil spring encircling said reel portion, the surface of said coil spring adjacent said reel portion being adapted to frictionally engage said reel portion only during unwinding of said coil spring, said coil spring having a free end;
  • an elongate generally bar-shaped trigger member pivotally mounted at one end thereof within said main body portion, the other end thereof being secured to the free end of said coil spring, said trigger member having an enlarged trigger portion; and
  • a pair of aligned openings in said main body portion, said openings and the surface of the main body portion immediately beneath the tail section being so configured and so positioned to form a pistol grip to permit access to and actuation of said trigger member by holding the toy by the pistol grip so formed, manual pivoting of said trigger member in a first direction to unwind said coil spring causing said spring to frictionally engage said reel portion to thereby rotate said rotor blades in a given direction, said trigger member being pivoted in the opposite direction under the force of said coil spring rewinding.


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Forward References: Show 11 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (11)   |   Backward references (8)   |   Citation Link

Buy
PDF
Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 2pp USD161621* 1951-01 Halvas    
Get PDF - 2pp US197177* 1877-11 Robinson    
Get PDF - 2pp US613766* 1898-11 Hodgkinson    
Get PDF - 4pp US2642698* 1948-05 Fishburne    
Get PDF - 3pp US3001763* 1961-09 Pilot    
Get PDF - 3pp US3400486  1968-09 Strauss   CAP SHOOTING AIRPLANE
Get PDF - 7pp US3450239  1969-06 Ryan et al.   CLUTCH DEVICE FOR SOUND REPRODUCING MEANS
Get PDF - 5pp US3608234  1971-09 Davidson   TOY AIRCRAFT VEHICLE
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Foreign References: None

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