Mixing and stirring device, method, and method for manufacturing lightweight gypsum board, including chute with eccentric orifice passage
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 2, 2018
Issued Date -
N/A
app pub date -
Nov 27, 2013
filing date -
Dec 5, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Turning motion of gypsum slurry spouting onto a sheet of paper for a gypsum board liner is restricted for preventing maldistribution, deviation or irregular dispersion from occurring in the density distribution of the slurry on the sheet of paper. A mixing and stirring device for gypsum slurry has a circular casing forming a mixing area, a rotary disc positioned in the casing, and a tubular passage for feeding the slurry onto the sheet of paper for the gypsum board liner. A chute has a fluid passage portion with its cross section being non-axisymmetric with respect to a center axis of the tubular passage, or a fluid passage portion varying a position of the center axis of the tubular passage by a change or lateralization of the cross section of fluid passage.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2013 Application Filing Year
- C04B Class
- 1062 Applications Filed
- 979 Patents Issued To-Date
- 92.19 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 6 Citation Count
- C04B Class
- 38.42 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 2, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 2, 2029 |
