Pressure relief valve
OwnerHarold J. Ledbetter, Wayne Ledbetterinventors
Life of this patent
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Abstract
A pressure relief valve for a fluid pressure system having a pressure vent. A body is aligned with and in fluid communication with the pressure vent, the body terminating in a cylindrical portion having a circular opening. A bonnet is in axial alignment with the circular opening and a central shaft extends axially within the bonnet. The bonnet is stationary with respect to the body. A shroud, spaced from and entirely surrounding the bonnet, is axially aligned with the bonnet to allow unobstructed fluid flow in a space parallel to the central shaft between the bonnet and the shroud. The shroud is free-standing except for a radially extending flange attachable to the body. A spindle head disk extends radially from the shaft and has a circular edge seatable in the circular opening of the lip.
Claims20
A pressure relief valve for a fluid pressure system having a pressure vent, which valve comprises:
- a. a body aligned with and in fluid communication with said pressure vent, said body terminating in a lip having a circular opening, said body detachably connected to said fluid pressure system;
- b. a bonnet in axial alignment with said circular opening, a central shaft extending axially into said bonnet, said bonnet being stationary with respect to said body;
- c. a fluid tight shroud spaced from and entirely surrounding said bonnet, said shroud axially aligned with said bonnet and extending from said body to allow unobstructed flow in a space parallel to said central shaft between said bonnet and said shroud to a single top outlet opening in said shroud, said shroud being free-standing except for a radially extending flange attachable to said body;
- d. said body being detachable from said fluid pressure system and thereafter said shroud being reattachable to the fluid pressure system without said body;
- and
- e. a spindle head disk extending radially from said central shaft and having a circular edge seatable in said circular opening.
A pressure relief valve for a fluid pressure system having a pressure vent, which valve comprises:
- a. a body aligned with and in fluid communication with said pressure vent, said body terminating in a lip having a circular opening, said body detachably connected to said fluid pressure system;
- b. a bonnet in axial alignment with said circular opening, a central shaft extending axially within said bonnet;
- c. a fluid tight shroud spaced from and surrounding said bonnet, said shroud axially aligned with said bonnet and extending from said body to allow unobstructed flow in a space between said bonnet and said shroud to a single top outlet opening in said shroud;
- d. a spindle head disk extending radially from said central shaft and having a circular edge seatable in said circular opening;
- and
- e. means to remove said body from said fluid pressure system and thereafter reattach said shroud to said fluid pressure system without said body.
A pressure relief valve for a fluid pressure system having a pressure vent, which valve comprises:
- a. a body aligned with and in fluid communication with said pressure vent, said body terminating in a lip having a circular opening, said body detachably connected to said fluid pressure system;
- b. a bonnet in axial alignment with said circular opening, a central shaft extending axially into said bonnet, said bonnet being stationery with respect to said body;
- c. a fluid tight shroud spaced from and entirely surrounding said bonnet, said shroud axially aligned with said bonnet and extending from said body to allow unobstructed flow in a space parallel to said central shaft between said bonnet and said shroud to a single top outlet opening in said shroud;
- d. said body being detachable from said fluid pressure system and thereafter said shroud being reattachable to the fluid pressure system without said body;
- and
- e. wherein said bonnet includes a plurality of vents and said shroud includes a chamfered portion at an angle to said axis of said shroud and bonnet so that said vents align with and correspond to said chamfered portion.
Dependencies are inferred from the claim text.