Acceleration and retardation responsive electric control device

• US 4,022,998 A
• Filed: 04/17/1975
• Issued: 05/10/1977
• Est. Priority Date: 06/13/1972
• Status: Expired due to Term

• Current Assignee: Artur Fohl
• Original Assignee: Artur Fohl
• Inventors: Fohl, Artur
• Primary Examiner(s): Scott, James R.
• Application Number:
  US05/569,096
• Time in Patent Office: 754 Days
• Field of Search: 200/1 R, 200/61.45 R, 200/61.48-61.52, 200/61.53, 200/DIG. 29, 200/293-296
• US Class Current: 200/61.45R
• CPC Class Codes: H01H 35/14 Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch wherein the liquid constitutes a contact of the switch H01H29/002
• CPC Class Codes: Y10S 200/29 Ball

Abstract

A device responsive to acceleration in any direction in which a ball rests on an upwardly facing seat in a housing and is movable laterally on the seat when acted on by a predetermined force of acceleration. When the ball moves laterally on the seat an electric circuit is completed which can be employed for signalling or control purposes.

Claims

1. An acceleration and retardation responsive device comprising;

housing means, a mass element in said housing means, a support member in said housing having an upwardly facing annular seat on the upper end thereof engaging said element in a region radially spaced from the vertical central axis of the element whereby said element is displaceable from said seat in response to a predetermined force of acceleration exerted between said seat and said element in any direction, and means operable in response to lateral movement of said element relative to said seat for actuating switch means adapted for connection in an external control circuit, and vertical damping means supporting said housing in a damped manner against vertical impacts.

2. A device according to claim 1 in which said support means comprises spring means supporting said housing for cushioned axial movement.

3. An acceleration and retardation responsive device comprising:

housing means, a mass element in said housing means in the form of a ball, a support member in said housing having an upwardly facing annular seat on the upper end thereof engaging said ball in a region radially spaced from the vertical central axis of the ball whereby said ball is displaceable from said seat in response to a predetermined force of acceleration exerted between said seat and said ball in any direction, and means operable in response to lateral movement of said ball relative to said seat for actuating switch means adapted for connection in an external control circuit, and support means moveably supporting said housing, said support means comprising means pivotally connected to an upper region of said housing on the axis thereof and above said seat and ball.

4. An acceleration and retardation responsive device comprising;

housing means, a mass element in said housing means in the form of a ball, a support member in said housing having an upwardly facing annular seat on the upper end thereof engaging said ball in a region radially spaced from the vertical central axis of the ball whereby said ball is displaceable from said seat in response to a predetermined force of acceleration exerted between said seat and said ball in any direction, and means operable in response to lateral movement of said ball relative to said seat for actuating switch means adapted for connection in an electric control circuit, casing surrounding said housing, said housing being moveably supported in said casing, and damping liquid in said casing in which said housing is at least partly submerged.

5. A device according to claim 4 in which said casing has a top wall, said housing having a ball element at the top on the axis thereof, and a socket in the top wall of said casing swivelly receiving said ball element.

6. A device according to claim 5 in which said housing has a top wall press fitted thereon, said ball element being fixedly attached to the top wall of said housing.

7. A device according to claim 5 in which said ball element comprises elastic material.

8. A device according to claim 5 in which wires leading from the terminals of said switch means pass through said ball element in the axial direction of said housing.

9. A device according to claim 5 which includes an elastic cushioning ring supporting said top wall of said casing on said casing.

10. A device according to claim 5 in which said casing has a bottom wall and a peripheral wall upstanding from the bottom wall, said top wall closing the upper end of said casing, said socket being formed in the center of said top wall of the closing.

11. A device according to claim 10 in which the top wall of said casing is spring fitted into the upper end of said casing.