Gear pump with gears having curved teeth and method of feeding elastomeric material
US7040870B2 · kind B2 · utility
8Cited by
15References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2003 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Aug 3, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C15/0042
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A gear pump and method for pumping elastomeric material having two gears with meshing herringbone gear teeth. Each of the gear teeth has helical side portions and a curved central portion which extends circumferentially of the gear a distance equal to at least one half the pitch of the gear teeth to provide a continuous squeezing contact between the teeth of the two gears for pumping a uniform strip of elastomeric material from the gear pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.