Jul 21, 2026

US12687378 - Actuation mechanism for actuating a device and method for actuating a device

An actuating mechanism including: a base having a helically shaped passage; a movable mass having a helically shaped projection, a first surface of the helically shaped projection mating with a corresponding second surface of the helically shaped passage; and a spring biasing the first surface against the second surface when the base is not being accelerated. Wherein the helically shaped passage, the helically shaped projection and the spring are configured to maintain the helically shaped projection in a first portion of the helically shaped passage upon the base experiencing a first acceleration profile having a first magnitude and a first duration and allow the mass to move to a second portion of the helically shaped passage upon the base experiencing a second acceleration profile having a second acceleration lower than the first acceleration and a second duration greater than the first duration.

Assignee: OMNITEK PARTNERS LLC
Inventors: Jahangir S. Rastegar, Jacques Fischer
Filing date: 2024-09-03

actuationmechanismdevice

The patent describes an actuating mechanism featuring a base with a helically shaped passage and a movable mass that interacts with this passage via a helically shaped projection, all biased by a spring. The design allows the movable mass to remain in a specific position during certain acceleration profiles, enabling controlled movement based on varying acceleration conditions.

Claim 1

1 . An actuating mechanism for actuating a device, the actuating mechanism comprising: a base having a helically shaped passage; a movable mass having a helically shaped projection, a first surface of the helically shaped projection mating with a corresponding second surface of the helically shaped passage; and a spring for biasing the first surface of the helically shaped projection of the movable mass against the second surface of the helically shaped passage when the base is not being accelerated; wherein the helically shaped passage, the helically shaped projection and the spring are configured to maintain the helically shaped projection in a first portion of the helically shaped passage upon the base experiencing a first acceleration profile having a first magnitude and a first duration and allow the mass to move to a second portion of the helically shaped passage upon the base experiencing a second acceleration profile having a second acceleration lower than the first acceleration and a second duration greater than the first duration. a base having a helically shaped passage; a movable mass having a helically shaped projection, a first surface of the helically shaped projection mating with a corresponding second surface of the helically shaped passage; and a spring for biasing the first surface of the helically shaped projection of the movable mass against the second surface of the helically shaped passage when the base is not being accelerated; wherein the helically shaped passage, the helically shaped projection and the spring are configured to maintain the helically shaped projection in a first portion of the helically shaped passage upon the base experiencing a first acceleration profile having a first magnitude and a first duration and allow the mass to move to a second portion of the helically shaped passage upon the base experiencing a second acceleration profile having a second acceleration lower than the first acceleration and a second duration greater than the first duration.

Google Patents

https://patents.google.com/patent/US12687378

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12687378