US 11,701,741 B2
Methods and apparatus for manufacture of moment connection components
John S. Boyd, Tiburon, CA (US); Kevin Marek, Hayward, CA (US); Eric Bellman, Hayward, CA (US); Maxwell C. Simmons, Hayward, CA (US); Robert J. Simmons, Hayward, CA (US); and Brian Hood, San Francisco, CA (US)
Assigned to ConXtech, Inc., Pleasanton, CA (US)
Filed by ConXtech, Inc., Pleasanton, CA (US)
Filed on Feb. 7, 2019, as Appl. No. 16/270,573.
Claims priority of provisional application 62/628,814, filed on Feb. 9, 2018.
Claims priority of provisional application 62/628,807, filed on Feb. 9, 2018.
Prior Publication US 2019/0247963 A1, Aug. 15, 2019
Int. Cl. B23K 37/00 (2006.01); B23K 37/04 (2006.01); E04B 1/24 (2006.01); E04G 21/16 (2006.01); B23K 103/04 (2006.01); B23K 101/28 (2006.01); B23K 101/24 (2006.01)
CPC B23K 37/0435 (2013.01) [B23K 37/0452 (2013.01); E04B 1/2403 (2013.01); E04G 21/163 (2013.01); B23K 2101/24 (2018.08); B23K 2101/28 (2018.08); B23K 2103/04 (2018.08); E04B 2001/2415 (2013.01); E04B 2001/2424 (2013.01); E04B 2001/2457 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A collar flange assembly welding fixture, comprising:
a stand having a plurality of circumferential bearings equidistant from an axis of rotation;
a circular mount structure rotatably supported by the circumferential bearings; and
a support assembly configured for mounting on the circular mount structure, and including a plate structure and a pair of collar corner simulators;
a lock mechanism having a free mode in which the circular mount structure is rotatable about the axis and a locked mode in which the circular mount structure is not rotatable, the lock mechanism being configured to prevent removal of a flange assembly held by the support assembly when the lock mechanism is in the free mode;
wherein the stand, circular mount structure, and support assembly are configured to provide access to a front side and a back side of a collar flange assembly held by the support assembly.