Bamboo railroad tie manufacturing system
US10456959B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2016 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Jul 31, 2038 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21B1/061
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A system for crafting railroad crossties of compressed bamboo is described. The system employs a hydraulic press configured to effectively compress multiple stalks of bamboo into a strong unified beam within a mold. Bamboo is first mashed, dried, and treated. A resin is employed as a permanent adhesive, binding the stalks together. The bamboo is stacked within a mold and compressed under the pressure exerted by the hydraulic press. An oven is used to heat the compressed bamboo, and then the bamboo is cooled. The compressed bamboo beam may then be trimmed to remove excess bamboo, and is cut into crosstie segments if needed. The resulting crosstie is sturdy, ecologically friendly, and rapidly manufactured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.