U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Hand cart braking system

Patent 5722515 Issued on March 3, 1998. Estimated Expiration Date: Icon_subject January 27, 2017. 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.

Patent References

2738034

3276550

3422930

3486587

3532188

3623575

Lever actuated brake assembly
Patent #: 3945472
Issued on: 03/23/1976
Inventor: Peters ,   et al.

Brakeable hand truck
Patent #: 3968974
Issued on: 07/13/1976
Inventor: Wetzel

Hand truck
Patent #: 4142732
Issued on: 03/06/1979
Inventor: Boyd

Hand brake apparatus for hand trucks
Patent #: 4819767
Issued on: 04/11/1989
Inventor: Laird

More ...

Inventor

Application

No. 788381 filed on 01/27/1997

US Classes:

188/22, Two-wheel188/71.5, Plural rotating elements (e.g., "multidisc")188/77W, Wrap band type280/47.27With toe (e.g., warehouse truck)

Examiners

Primary: Graham, Matthew C.
Assistant: Schwartz, Christopher P.

Attorney, Agent or Firm

International Class

B60T 001/04

Abstract

A braking system is provided having a rotatable split axle mounted laterally between the wheels of the hand cart. The axle is split in the middle of the axle to form two distinct segments. The adjacent ends of the axle have a longitudinal hole drilled in the axles and a pin is inserted between the holes to connect the two segments of the axle. A fixed hub for mounting the wheels is secured at the ends of the axle. The axle extends through bearing mounted on a bearing support brackets at the bottom of the hand cart. Each axle segment rotates with its respective wheel, and the axle segment and wheel on one side of the cart rotate independently of the other axle segment and wheel combination. A brake is mounted on the axle at the junction of the two axle segments. An actuator handle is mounted on the cart at a convenient point for actuating the brake. When the brake is manually operated, the braking force is applied to both segments of the axle to smoothly stop the hand cart. The brake is preferably a disc brake or a drum brake, although other braking devices may also be used in the present system.

PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$16.95more info
 
Sign InRegister
Username  
Password   
forgot password?