Back to results
US 2026/0201972 A1Published application
Rising stem sealed bonnet assembly
AssigneeITT Engineered Valves, LLC
InventorsChong Yi, Timothy Cassel, Stephen T. Donohue, Nang Chau
Life of this patent
Estimating the term…
Abstract
A bonnet assembly that includes a handwheel, a stem in contact with the handwheel, a bushing in contact with the stem, an O-ring between the handwheel and the stem, a bonnet housing, and a compressor. The stem includes a spindle and an end. The bonnet housing includes at least one partial internal rib and an overhang lip. The end is configured to attach the stem directly to the compressor.
Claims20
A bonnet assembly comprising:
- a handwheel;
- a stem in contact with the handwheel including a spindle and an end;
- a bushing in contact with the stem;
- an O-ring between the handwheel and the stem;
- a bonnet housing including at least one partial internal rib and an overhang lip;
- and
- a compressor;
- wherein the end is configured to attach the stem directly to the compressor.
5 more elements
A bonnet assembly comprising:
- a handwheel;
- a stem in contact with the handwheel including a spindle and a T-shaped or pin receiving end;
- a bushing in contact with the stem;
- a handwheel tie bar defining a tie hole;
- a bonnet housing including at least one partial internal rib and an overhang lip;
- a first O-ring between the handwheel and the stem;
- a second O-ring between the bonnet housing and the bushing;
- a third O-ring between the bushing and the stem;
- and
- a compressor;
- wherein the T-shaped or pin receiving end is configured to attach the stem directly to the compressor and the second and third O-rings seal a bushing cavity and a handwheel cavity of the bonnet assembly in the event of a tear in a diaphragm.
8 more elements
A bonnet assembly comprising:
- a handwheel;
- a stem in contact with the handwheel including a spindle and a T-shaped or pin receiving end;
- a bushing in contact with the stem;
- a handwheel tie bar defining a tie hole;
- a bonnet housing including at least one partial internal rib and an overhang lip;
- an O-ring between the bonnet housing and the bushing;
- at least one sealed set screw on a base of the handwheel;
- at least one mechanical set screw on the base of the handwheel;
- and
- a compressor;
- wherein the T-shaped or pin receiving end is configured to attach the stem directly to the compressor, the at least one sealed set screw is configured as a pressure relief set screw and when opened releases pressure within an upper bushing cavity and a handwheel cavity of the bonnet assembly caused when a diaphragm is torn, and the at least one mechanical set screw is configured to maintain mechanical stability of the handwheel when the at least one sealed set screw is opened.
8 more elements
Dependencies are inferred from the claim text.