Collapsible luggage trolley

Patent 5639109 Issued on June 17, 1997. Estimated Expiration Date:

October 16, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Trolley with improved telescopic tubes
Patent #: 5127664
Issued on: 07/07/1992
Inventor: Cheng

Tractive baggage handcart
Patent #: 5374073
Issued on: 12/20/1994
Inventor: Hung-Hsin

Adjustable towing handle for a trunk
Patent #: 5447217
Issued on: 09/05/1995
Inventor: Chou

Pull rod structure of a baggage cart
Patent #: 5458020
Issued on: 10/17/1995
Inventor: Wang

Adjustable handle assembly
Patent #: 5459908
Issued on: 10/24/1995
Inventor: Chen

Retractable handle for hand trucks or the like
Patent #: 5464244
Issued on: 11/07/1995
Inventor: Tsai

Cart and Luggage handle assembly with an actuator and release apparatus
Patent #: 5522615
Issued on: 06/04/1996
Inventor: Kazmark, Jr., et al.

Full handle for a truck Patent #: 5584097
Issued on: 12/17/1996
Inventor: Lu

Inventor

Liang, Shan Kuai

Application

No. 720973 filed on 10/16/1996

US Classes:

280/655, Collapsible handle16/113.1, Length adjustable pull handle for luggage or luggage cart (e.g., wheeled suitcase handle, etc.)190/15.1, Luggage carrier190/18A, Wheeled280/655.1Handle only is collapsible

Examiners

Primary: Johnson, Brian L.
Assistant: Avery, Bridget

Attorney, Agent or Firm

Rosenberg; Morton J., Klein; David I.

International Class

B62B 001/12

Abstract

A collapsible luggage trolley includes a pair of outer tubes, a pair of inner tubes respectively telescopically received in the outer tubes, a telescopic device which allows telescopic movements of the inner tubes in the outer tubes, and a control device. The control device includes a slide button for manual operation, a pivotal block securely attached to and thus pivotally actuatable by the slide button, two latch members attached to the pivotal block for releasably engaging with one of upper and lower engaging holes of the associated inner tubes.