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US 4,411,372 AGranted
Pressure vessel construction
AssigneeChern Developments Limited
InventorsErnest P. Basterfield, Parker L. Basterfield
Life of this patent
Estimating the term…
Abstract
A lid for a pressure vessel which is seamless and which includes a peripheral groove in an outer surface formed by deforming the material of the lid, for example by a swaging process. The groove accommodates a seal, such as an O-ring.
Claims3
A pressure vessel comprising a container;
- a seamless lid including a peripheral groove formed in an outer surface thereof by deforming the material of said lid;
- sealing means located at least partly in said peripheral groove;
- and a plurality of fastening fixtures, wherein each of said fastening fixtures comprises a threaded shaft which is secured to said container and pivotal relative thereto in a substantially vertical plane, a bracket having a hook formation and which is movable along at least a part of said shaft, and which is engageable in a complemental formation on said lid, and a nut which threadedly engages said shaft and is rotatable between a position at which it prevents disengagement and a position at which it permits engagement of said bracket and said lid.
Dependencies are inferred from the claim text.