Dual wheels with internal air passageways
US9327563B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2013 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Jul 21, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C2003/005
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
This invention describes a system to maintain equal pressure in a pair of dual tires, and also incorporates a valve mechanism that will prevent one dual wheel tire from going flat in the event the other dual wheel tire experiences a rapid air loss. Dual wheels are typically mounted on the vehicle hub with both wheel disc faces in direct contact with each other. To ensure equal pressure in both tires, this invention has air passageways machined into the wheels such that the air passageways meet at the interface between the wheels where the wheel disc faces are in direct contact. These junctions are sealed by a rubber seal or gasket. Both tires can then be inflated or deflated simultaneously through a standard air valve located on either wheel. Where a dual wheel arrangement requires the use of an intermediate piece between the dual wheels, air passageways can connect the two-piece wheels via intermediate air passageways going through the common intermediate piece. A dual pressure equalizing valve is connected to the air passageways and embedded into the wheels or intermediate piece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.