Safety valve
AssigneeVaporless Manufacturing, Inc.
InventorPenrod Geisinger
Life of this patent
Estimating the term…
Abstract
A safety valve limits but does not curtail flow of fluid from a source through the body of the safety valve upon release of a handle. A pivotable vane disposed within the body is urged to pivot from a first state not restricting fluid flow to a second state restricting fluid flow in response to the force of the fluid flow. A shaft supporting the vane is connected to the handle. Retaining the handle in a position commensurate with the first state of the vane will permit fluid flow through the safety valve, which fluid flow will become limited upon release of the handle due to a change in state of the vane.
Claims20
A safety valve for reducing fluid flow therethrough, said safety valve comprising in combination:
- a) a body;
- b) an inlet for introducing fluid flow into said body;
- c) an outlet for discharging fluid flow from said body;
- d) a pivotable vane disposed in said body, said vane being positionable in a first state to accommodate fluid flow through said body and in a second state for limiting but not curtailing fluid flow through said body, said vane including means for urging said vane from the first state to the second state in response to fluid flow through said body;
- and
- e) a handle disposed outside of said body for repositioning said vane between said first and second states.
A method for reducing but not curtailing the flow rate of a fluid through a safety valve, said method comprising the steps of:
- a) accommodating fluid flow through a body of the safety valve with a pivotable vane disposed in a first state within the body;
- b) urging the vane to pivot to a second state in response to fluid flow through the body;
- c) retaining the vane in the first state with a handle external of the body during fluid flow through the body;
- and
- d) rotating the vane to the second state in response to fluid flow through the body and release of the handle to limit but not curtail fluid flow through the body.
A safety valve for limiting but not curtailing flow of fluid through a body of the said safety valve, said safety valve comprising in combination:
- a) a pivotable vane disposed within said body, said vane having a first state for accommodating fluid flow through said body and a second state for limiting but not curtailing fluid flow through said body;
- b) said vane including means responsive to fluid flow through said body for urging said vane to the second state;
- and
- c) a pivotable handle disposed external of said body for maintaining said vane in the first state during fluid flow through said body when said handle is retained in a first position, said handle being pivoted to a second position upon lack of retention in the first position in response to pivotal movement of said vane urged by the fluid flow through said body.
Dependencies are inferred from the claim text.