The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 2019
Filed:
Aug. 27, 2012
Applicant:
Yingui Sun, Beijing, CN;
Inventor:
Yingui Sun, Beijing, CN;
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E01C 13/12 (2006.01); C09K 3/24 (2006.01); F25C 3/04 (2006.01); H01F 1/01 (2006.01); B22F 1/02 (2006.01); B22F 9/04 (2006.01); H01F 1/28 (2006.01); B01J 2/00 (2006.01); C22C 33/02 (2006.01);
U.S. Cl.
CPC ...
C09K 3/24 (2013.01); B01J 2/006 (2013.01); B22F 1/02 (2013.01); B22F 9/04 (2013.01); E01C 13/12 (2013.01); F25C 3/04 (2013.01); H01F 1/01 (2013.01); H01F 1/28 (2013.01); C22C 33/0278 (2013.01); C22C 2202/02 (2013.01);
Abstract
Artificial snow at ambient temperature is used for skiing and is composed of grains of artificial snow at ambient temperature that include magnetic solid grains. The producing method comprises the following steps: (1) using a crushing apparatus to crush a magnetic material into solid grains; (2) using a mesh sieve to sieve the solid grains at a certain particle size; and (3) bonding a layer of material capable of modifying surface property to the surface of the solid grains obtained from sieving. A trail comprises the artificial snow at ambient temperature.