US 12,324,518 B2
Method of manufacturing at least a portion of a swivel glide
Man F. Hui, Monterey Park, CA (US)
Assigned to Virco Mfg. Corporation, Torrance, CA (US)
Filed by Virco Mfg. Corporation, Torrance, CA (US)
Filed on Feb. 13, 2023, as Appl. No. 18/168,501.
Claims priority of provisional application 63/268,054, filed on Feb. 15, 2022.
Prior Publication US 2023/0255353 A1, Aug. 17, 2023
Int. Cl. B29C 45/14 (2006.01); A47B 91/06 (2006.01); B29C 45/04 (2006.01); B29L 31/44 (2006.01)
CPC A47B 91/066 (2013.01) [B29C 45/04 (2013.01); B29C 45/14467 (2013.01); B29L 2031/44 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method of manufacturing at least a portion of a swivel glide, the method comprising:
providing a first mold, the first mold comprising a first bottom surface, a first top surface, a first cavity, and a spherical protrusion, the spherical protrusion positioned in the first cavity formed on the first top surface, the spherical protrusion comprising a plurality of cutouts formed on an outer surface of the spherical protrusion and extending along at least a portion of a height of the spherical protrusion;
providing a second mold, the second mold comprising, a second bottom surface, a second top surface, a second cavity, and a plurality of arms;
positioning the second mold on top of the first mold such that the first top surface of the first mold is abutted against the second bottom surface of the second mold, the plurality of cutouts of the first mold configured to receive the plurality of arms of the second mold when the second mold is positioned on top of the first mold;
injecting a first moldable material in the first mold to fill the first cavity and the second mold to fill the second cavity while the second mold is positioned on top of the first mold;
curing the first moldable material within the first mold and the second mold;
after curing the first moldable material, separating the first mold and the second mold to remove a cured first moldable material from the first mold and the second mold, the cured first moldable material forming an upper member of the swivel glide.