Hand brake device for handtruck
Patent 5390943 Issued on February 21, 1995. Estimated Expiration Date: 
October 28, 2013. 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.
October 28, 2013. 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 1701188 3276550 3422930 3486587 Control linkage for a band type brake Band brake assembly for bicycle Brake actuator Hand brake apparatus for hand trucks Combination hand truck and stair ramp Patent #: 5277436 InventorApplicationNo. 144763 filed on 10/28/1993US Classes:280/47.24, Laterally spaced wheels74/471R, Multiple controlled elements74/501.6, And hand operator188/22, Two-wheel188/77R, StrapD34/27Element or attachmentExaminersPrimary: Oberleitner, Robert J.Assistant: Young, Lee International ClassB60T 001/00AbstractA hand brake apparatus for installation on handtrucks of the type which have a load bearing platform and vertical load supporting frame with at least two fixed parallel wheels. An embodiment of the invention includes a single brake actuating lever which operates the two brake mechanisms simultaneously. The brake mechanisms include a band type brake shoe which acts upon a cylindrical brake drum attached to the hub of each wheel. The brake mechanisms are operated by force applied to one compression cable which extends from the brake actuating handle to a brake actuating lever. | |
