Bizarre Patents
Decorative Jeweled Wheel Cover
An improved wheel is provided wherein decorative items such as gem stones are embedded in either the wheel surface, a special mounting section attached to the wheel surface, or to a spoke strap that wraps around each spoke and positions embedded gem stones on the outside surface of the spoke.
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| Number | Title | Issue Date |
| 6935850 | Axially aligned dual piston cylinder air pump with a common head portion A dual-direction pump includes two cylinders arranged on opposite sides of a head portion and an inlet return-flow prevention device and a leakproof device mounted between the cylinder and the head portion for avoiding leakage at the juncture between the cylinder an... | 08/30/2005 |
| 6371741 | Manual air pump having at least two selectable inflation modes A manual air pump includes an outer cylinder having a first chamber and a head provided to the second end of the outer cylinder. The head includes an outlet passage communicated with the first chamber for supplying air to an object to be inflated. An inne... | 04/16/2002 |
| 6283723 | Integrated compressor expander apparatus Fluid displacement apparatus with a set of opposing pistons in traveling chambers and a set of opposing pistons in stationary bores; a second embodiment with all pistons in traveling chambers; a third embodiment with all pistons in stationary bores. In ea... | 09/04/2001 |
| 6220836 | Clamp device for a hand air pump A clamp device for a hand air pump includes a sleeve including a first end securely attached to an output end of a cylinder of the hand air pump and a second end for receiving a valve of an article to be inflated, a plug mounted in the sleeve, a protectiv... | 04/24/2001 |
| 6135733 | Manual air pump having selectable high pressure and low pressure modes A manual air pump includes a cylinder having a first chamber and a head provided to the second end of the cylinder. The head includes an outlet passage communicated with the first chamber for supplying air to an object to be inflated. A first piston rod h... | 10/24/2000 |
| 6132189 | Combined bicycle tire and air suspension pump with removable pressure gauge A pump includes a first cylinder with a first valve member connected to a first end of the first cylinder and a first handle disengagably connected to a second end of the first cylinder. A first piston is movably received in the first cylinder and a secon... | 10/17/2000 |
| 5873705 | Tire pump A tire pump includes a head portion with a tubular portion extending therefrom and a main passage is defined through the head portion and communicates with the tubular portion, a connecting member slidably mounted to the tubular portion and having at leas... | 02/23/1999 |
| 5779457 | Hand pump for pumping air of lower pressure and high pressure A hand pump includes a cylindrical member having a cap secured on top and a cover securing the cap to the cylindrical member. A large piston is slidably engaged in the cylindrical member and a barrel secured to the large piston. A small piston is slidably... | 07/14/1998 |
| 5507626 | Telescopic pump A telescopic manual pump has a first cylinder, a second cylinder received in the first cylinder, a third cylinder received in the second cylinder, a piston slidably received in the third cylinder and a stem linked to the piston. The first cylinder defines... | 04/16/1996 |
| 5165877 | Vacuum pump for use with a poolside skimmer A manually operable hand-held unit for eliminating air from a hose to be used as a pool vacuum hose having a quick coupling adaptor for connecting the air-evacuated hose to the inlet of a powered pool skimmer pump to eliminate the necessity of evacuating ... | 11/24/1992 |
| 5114321 | Fluid displacement apparatus with traveling chambers A positive displacement apparatus of the general type used as superchargers on internal combustion engines has two or more compression chambers capable of lateral movement to accommodate circular motion of the pistons. The driving forces for the chambers ... | 05/19/1992 |
| 5004404 | Variable positive fluid displacement apparatus with movable chambers Rectangular pistons are driven in a circular orbit by two spaced eccentrics on a common crankshaft. The displacement chambers reciprocate with a lateral motion parallel with the crankshaft. The radial forces created by the fluid pressure in the displaceme... | 04/02/1991 |
| 4683806 | Piston guide for hollow piston of a radial piston engine In a radial piston engine, in order to reduce the friction forces appearing at the pistons, a guide part is provided which engages a hollow piston through a guide section and which includes a bearing section at its outer end, by means of which the guide p... | 08/04/1987 |
| 4657489 | Fluid pumping apparatus A fluid pumping apparatus includes at least two counter-balanced, counter-reciprocating pump assemblies. Each pump assembly includes at least two generally vertical, balanced, reciprocating pumps.... | 04/14/1987 |
