Method for making herringbone gears
US5865239A · kind A · utility
54Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1997 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Feb 5, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2225/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing herringbone gears using an injection molding process is provided. The process involves the use of two separable mold halves each of which include a mold cavity for molding one half of the gear. Moldable material is injected into the mold halves when they are in a sealing abutting engagement. After the material solidifies, the mold halves are separated and the gear is simultaneously unscrewed from each mold cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.