William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7159632 | Non-pneumatic bicycle tire A non-pneumatic bicycle tire has a main tire body and at least one rim retaining member. The main tire body includes a rim engagement portion and a ground contact portion with a ground contact surface. The at least one rim retaining member is fixedly attached to the... | 01/09/2007 |
| 4572262 | Vehicle wheel and pneumatic tire assembly A vehicle wheel and pneumatic tire assembly, including a tire which essentially comprises rubber or rubber-like synthetic material, and a rigid rim which on the radially inner periphery of the rim ring has seating surfaces for the tire, from where the tir... | 02/25/1986 |
| 4572260 | Vehicle wheel with internally located emergency wheel The invention relates to a vehicle wheel with internally located emergency wheel, which is composed of a plurality of segments, preferably four segments. The segments have a substantially double T-shaped cross-section. Each segment is clamped in the well-... | 02/25/1986 |
| 4534394 | Wheel assembly having self-contained tire mounting capability A wheel assembly (10) having self-contained tire mounting and demounting capabilities includes a closed torus tire (18) mountable on a wheel rim (11). The tire (18) is forced onto the wheel rim (11) by a plurality of retainers (25) which are driven into a... | 08/13/1985 |
| 4480669 | Tire cooling structure The present invention relates to a novel means placed internally of a tubeless type pneumatic tire, placed upon the drop center rim to effectively transfer heat from the crown and shoulder portions to the sidewalls and the mounting rim during rotational o... | 11/06/1984 |
| 4406316 | Wheel and low air pressure tire combination A wheel for a low air pressure tire suitable for use in agricultural machines such as a binder and comprising a rim portion including a pair of bead seats and a disc portion made integral with the rim portion. Each of the bead seats is provided at its ins... | 09/27/1983 |
| 4393913 | Tire and wheel configuration In many designs, a tire (14) of a wheel (10) is inadequately restrained with respect to a tire supporting rim assembly (12) of the wheel. Movement of the tire (14) with respect to the rim assembly (12) results in a wastage of energy. In the present invent... | 07/19/1983 |
| 4381026 | Tire cooling structure The present invention relates to a novel means placed internally of a tubeless type pneumatic tire, placed upon the drop center rim to effectively transfer heat from the crown and shoulder portions to the sidewalls and the mounting rim during rotational o... | 04/26/1983 |
| 4325422 | Pneumatic tire and wheel rim assemblies A pneumatic tire and wheel rim assembly is disclosed in which the rim bead seats are defined by grooves having radially directed side portions which retain the associated tire bead against movement in an axial direction and each rim bead seat includes mea... | 04/20/1982 |
| 4203481 | Pneumatic tire, rim and combination thereof This disclosure relates to a tire, a rim and a combination thereof that yields improved stability characteristics when the tire is run flat. The combination of this invention yields a structure wherein the tire will operate normally under normal condition... | 05/20/1980 |