Patent ID: 11867000
Assignee: SWIVEL RENTAL & SUPPLY, L.L.C.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A modular swivel stand apparatus comprising:
a) first and second base structures, each having multiple perimeter legs, the first base structure being a flange base and having a bolt circle for attaching to a wellhead, the second base structure being a jack base and having securing gussets for securing a jack to the second base structure;
b) a basket structure that removably connects to a selected one of the first and second base structures, the basket structure having basket legs that connect to the base perimeter legs of the selected base and a basket floor;
c) spaced apart basket beams on the basket structure;
d) a carriage that mounts to the basket beams, the carriage including spaced apart carriage beam members, a transverse beam that spans between said carriage beam members and a space in between said carriage beam members and in front of said transverse beam;
e) a mast tower removably affixable to the carriage;
f) a mechanism to secure the mast tower to the carriage; and
g) first, second, and third square plates for being received in an opening in the basket floor, the first square plate having an opening therein to allow a jack to protrude therethrough, the second square plate having a hinged door, and the third square plate including a load transfer member sized and shaped to rest on the first base structure while causing the third square plate to project slightly above the basket floor.