Air pump
US7637203B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Aug 12, 2006 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Jul 16, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B35/01
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air pump comprises a cylinder, a piston, a piston rod, three substantially rigid members, and a handle. The piston is reciprocably movable within the cylinder and is secured to the piston rod. The first member is pivotably connected at its first end to the cylinder. The second member is pivotably connected at its first end to the piston rod and at its second end to the second end of the first member. The third member is pivotably connected at its first end to the connected second ends of the first and second members. The handle is pivotably connected to the second end of the third member. The third member is arranged to transmit between the handle and the connected second ends of the first and second members a force resulting from a force applied to the handle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.