US 12,338,870 B1Granted

Smooth transient excursion non-resonant (STEN-R) damper

OwnerJohn Kevin Stenardinventor

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Abstract

A device for an extensible and compressible friction-based damper which selectively resists stroking in a first direction while freely sliding in the opposite direction. Resistance is proportional to an adjustable and pre-settable value, which provides and adjustable static-hold capability. Sliding resistance being substantially independent of the relative position, velocity, acceleration or jerk (d3x/dt3) imposed upon it. Dampers according to the present disclosure can eliminate resonance amplification when combined with other conventional suspension components. The damper may be used in applications such as isolation mounts. Also disclosed is a method for a high-performance isolation mount to protect a Payload (persons or equipment) from mechanical shock and vibration, incorporating one or more dampers according to the present disclosure together with one or more elastic elements. A device made according to the present disclosure is dubbed a Smooth Transient Excursion Non-Resonant (STEN-R) Damper.

Claims15

Dependent claims

A damper device, the damper device comprising:

a slide assembly such that the damper device is slidable in a first direction and a second direction opposite from the first direction;
a brake assembly configured to selectively resist sliding of the device;
a force assembly configured to bias the brake assembly against the slide assembly;
and
a clutch assembly, wherein, responsive to sliding in the first direction, the clutch assembly is adjustable from an unclutched configuration to a clutched configuration to resist sliding of the device in the first direction, and wherein the clutch assembly comprises a biasing member applying a biasing force against the clutch assembly in the second direction, wherein the clutch assembly further comprises:
a trigger comprising at least two opposing faces which are disposed at an acute angle to one another;
at least one spring, which urges the trigger towards a vertex;
a first friction interface which facilitates the brake assembly and the clutch assembly to slide with the slide assembly;
a second friction interface, which is disposed between the trigger of the clutch assembly and the force assembly which facilitates the clutch and brake assembly to slide with the slide assembly relative to the force assembly;
and
a trigger hard stop, which has at least one surface configured to contact at least one surface of the trigger thereby preventing the trigger from sliding.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/452,354Filed 18 Aug 2023 · continuation
Priority: 9 Dec 2019
Granted: 24 Jun 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

F16F 13/005
Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs: comprising both a wound spring and…
F16F 7/082
With friction surfaces rectilinearly movable along each other: and characterised by damping force adjustment means
F16F 7/085
And characterised by damping force adjustment means: resulting in the damping effects being different according to direction of movement
F16F 15/022
Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not…

Family

Application16/708,430Parent of this continuation-in-part · filed 9 Dec 2019
Application16/869,446Parent of this continuation · filed 7 May 2020
US 11,867,249 B1Parent of this continuation
Application16/869,446Parent of this continuation-in-part
US 12,338,870 B1This patent

From the US filing history. Foreign family members aren’t listed.