Method for manufacturing a one-piece, multi-component injection molded brush
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 17, 2017
Issued Date -
Jan 2, 2014
app pub date -
Jun 20, 2013
filing date -
Jun 20, 2012
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
The invention relates to a method for producing a brush, particularly in the form of a mascara applicator, with bristles injection molded out of different injection molding compounds, using an injection mold that has a main cavity, which forms the bristle support, and secondary cavities branching off from this, with each secondary cavity forming a single bristle and with at least one first injection molding compound being injected into the main cavity, followed by a second injection molding compound in successive steps; at least one slider is inserted into the main cavity and closes part of the secondary cavities so that the first injection molding compound only travels into another part of the secondary cavities after which the slider is withdrawn and the second injection molding compound is injected so that it travels into the secondary cavities previously closed by the slider.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully