US 2025/0243700 A1 · ADJUSTMENT SCREW INDICATOR MECHANISM

Abstract

An exemplary door operator comprises a body, a hydraulic regulation valve, and a visual indicator mechanism. The hydraulic regulation valve is mounted to the body and is operable to adjust an operating characteristic of the door operator. The hydraulic regulation valve includes an adjustment screw having a variable screw position. The visual indicator mechanism is engaged with the hydraulic regulation valve, and is configured provide a visual indication relating to a level of regulation provided by the hydraulic regulation valve. The visual indication varies according to the variable screw position.

Claims20

Dependent claims

A hydraulic door operator, comprising:

a body;
a hydraulic regulation valve mounted to the body and operable to adjust an operating characteristic of the door operator, the hydraulic regulation valve including an adjustment screw having a variable screw position;
and
a visual indicator mechanism engaged with the hydraulic regulation valve and configured to provide a visual indication relating to a level of regulation provided by the hydraulic regulation valve, the visual indication varying according to the variable screw position.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

18/916,186Filed 15 Oct 2024

Priority

13 Apr 2022

Published

31 Jul 2025

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

E05F 3/10
With liquid piston brakes: with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
E05F 3/102
With a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction: with rack-and-pinion…
E05F 3/12
With liquid piston brakes: special devices controlling the circulation of the liquid, e.g. valve arrangement
E05Y 2201/25
Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor: mechanical means for force or torque adjustment therefor

Adjustment screw indicator mechanism

Life of this patent

Adjustment screw indicator mechanism

Life of this patent

Abstract

Claims20