Ronald Wayne Thacker

US Patent:

20030215316, Nov 20, 2003

Filed:

Jan 1, 2003

Appl. No.:

10/334646

Inventors:

Donald Joe Burney - Weaver AL, US
O. Thacker - Ohatchee AL, US
Ronald Thacker - Alexandria AL, US

International Classification:

B60P001/00

US Classification:

414/537000

Abstract:

Therefore it may be seen that the present disclosure includes the description of a system, particularly the First System which include advantages over the known prior art by providing a wheelchair ramp subassembly which includes the use of internal hydraulics, such that the subassembly can use its own hydraulics which do not need to be shared with other hydraulic units on the supporting vehicle. This provides an apparatus that includes improved operating characteristics, tends not to be contaminated through shared hydraulic connections, and can operate conditions in a manner not possible if connected to a shared hydraulic system. An improved bushing is also provided.