Time delay systems, methods, and devices
AssigneeGoodrich Corporation
InventorsMatthew D. Salois, Luis G. Interiano
Life of this patent
Estimating the term…
Abstract
A spring damper system for a pyrotechnic time delay may comprise: a piston; a firing pin; a hydraulic chamber, a portion of the piston disposed in the hydraulic chamber; and a first spring configured to compress in response to a time delay sequence being initiated, the piston configured to translate axially in the first axial direction in response to the first spring returning axially towards a neutral state, the first engagement end and the second engagement end configured to release in response to exiting the channel, and the firing pin configured to translate in the second axial direction in response to a second spring returning towards a second neutral state.
Claims20
A spring damper system for a pyrotechnic time delay, comprising:
- a piston having a piston head, a first rod extending in a first axial direction from the piston head, and a second rod extending in a second axial direction from the piston head, the second axial direction opposite the first axial direction, a first end of the second rod including a first engagement end;
- a firing pin comprising a head and a third rod extending axially from the head in the first axial direction, a second end of the third rod comprising a second engagement end, the second engagement end releasably coupled to the first engagement end in a channel, the channel configured to maintain engagement between the first engagement end and the second engagement end;
- a hydraulic chamber, the piston head disposed in the hydraulic chamber;
- and
- a first spring configured to compress in response to a time delay sequence being initiated, the piston configured to translate axially in the first axial direction in response to the first spring returning axially towards a neutral state, the first engagement end and the second engagement end configured to release in response to exiting the channel, and the firing pin configured to translate in the second axial direction in response to a second spring returning towards a second neutral state.
An inert time delay device, comprising:
- a housing having a first axial end and a second axial end;
- an ignition disposed at the first axial end;
- a primer disposed at the second axial end;
- a spring damper system disposed in the housing, the spring damper system comprising:
- a first spring disposed in a first chamber of the housing, the first chamber extending axially in a first axial direction from the ignition towards the second axial end;
- a second spring disposed in a second chamber of the housing, the second chamber extending axially in a second axial direction from the primer towards the first axial end;
- a piston comprising a piston head disposed between the first chamber and the second chamber;
- and
- a firing pin releasably coupled to the piston, the piston configured to travel axially in the second axial direction in response to the first spring returning from a first compressed state towards a first neutral state, the firing pin configured to disengage from the piston in response to a first engagement end of the piston and a second engagement end of the firing pin exiting a channel, the firing pin configured to travel axially in the first axial direction in response to the second spring returning from a second compressed state towards a second neutral state and initiating the primer.
A method of using an inert time delay device, the method comprising:
- receiving, via the inert time delay device, a pressure in a first chamber in response to an ignition being activated;
- compressing, via a pressure plate in the inert time delay device, a first spring in a first axial direction in response to the pressure;
- translating, via a piston in the inert time delay device, in a second axial direction in response to the first spring returning towards a first neutral state;
- translating, via engagement between the piston and a firing pin in the inert time delay device, the firing pin in the second axial direction;
- compressing, via a head of the firing pin in the inert time delay device, a second spring in response to translating the firing pin in the second axial direction;
- releasing a first engagement end of the piston from a second engagement end of the firing pin in response to the first engagement end and the second engagement end exiting a channel into a release chamber;
- translating the firing pin in the first axial direction in response to the second spring returning towards a second neutral state;
- and
- igniting, via the firing pin in the inert time delay device, a primer in response to the firing pin contacting the primer.
Dependencies are inferred from the claim text.