Destructible core for undercut casting
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 10, 1994
Grant Date -
N/A
app pub date -
Jul 26, 1991
filing date -
Aug 2, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Destructible cores useful particularly for shaping the internal channels of cast propellant blocks. The cores include at least one elongated element which is shaped, for example by winding, the cohesion of which is ensured by way of a joining material and a portion of which is accessible from the exterior of the component to be cast. In order to obtain quickly cores having a high rigidity, the shaped element is a band which includes interlaced wires having free spaces, the joining material filling the free spaces.
First Claim
Family
International Classification(s)
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