US 12,280,383 B2
Paint bell cup for vehicle paint application
Deanna Stangas, Royal Oak, MI (US); Alonso Samuel Chavez, San Luis Potosi (MX); Octavio Addiel Pichardo, Celaya (GT); Hua-tzu Fan, Troy, MI (US); Ronald C. Daul, Northville, MI (US); and Dominick Michael Lentine, Napa, CA (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM Global Technology Operations LLC, Detroit, MI (US)
Filed on Mar. 9, 2022, as Appl. No. 17/690,266.
Prior Publication US 2023/0285988 A1, Sep. 14, 2023
Int. Cl. B05B 1/06 (2006.01); B05B 1/34 (2006.01)
CPC B05B 1/06 (2013.01) [B05B 1/3405 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A paint bell cup for directing a spray of paint onto a surface comprising:
a cup body having an outer surface,
an inner conical surface having a circumferential edge, and
a stem extending from the outer surface, the stem including a passage that delivers paint toward the inner conical surface,
wherein the cup body includes one or more spray control features that extend along the inner conical surface toward the circumferential edge, the one or more spray control features promoting a selected uniform droplet size of the paint traveling from the stem toward the circumferential edge,
wherein the one or more spray control features include grooves formed on the inner conical surface, the grooves extending along the inner conical surface toward the circumferential edge, and
wherein the grooves extend from the stem across the inner conical surface and up to the circumferential edge.