Patent ID: 11959567
Assignee: DRIL-QUIP, INC.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  E | IPC E  F

Claim 6:
7. A system comprising;
a compound hub flange comprising an aperture extending therethrough, an inner hub, and an outer hub, wherein a groove is formed between the inner hub and the outer hub, wherein the groove does not provide a sealing surface;
a piece of equipment adjacent the compound hub flange and having an aperture extending therethrough and aligned with the aperture of the compound hub flange, wherein the piece of equipment has a continuous face facing the compound hub flange and contacting both the inner hub and the outer hub of the compound hub flange; and
a bolt extending through the compound hub flange and threaded into the piece of equipment to connect the compound hub flange to the piece of equipment.