Industry Patents
Patent: 10340782
Method of Reducing Sound from Light Fixture with Stepper Motors
(Click image for PDF of full patent)
| Patent Number: |
10340782 |
| Title: |
Method of Reducing Sound from Light Fixture with Stepper Motors |
| Abstract: |
A light fixture including a stepper motor comprising a stepper motor
stator and a stepper motor rotor. The stepper motor rotor includes a
stepper motor axle and is rotatable around a stepper motor axis. The
stepper motor is connected to a movable object and is configured to move
the movable object in relation to a reference point. A damping mass is
attached to the stepper motor axle. The damping mass has a rotational
inertia in relation to the stepper motor axis which is at least as large
as the rotational inertia of the stepper motor rotor in relation to the
stepper motor axis. A method of damping the sound generated by a light
fixture comprising a step of attaching a damping mass to a stepper motor
axle.
|
| Country of Issue: |
US |
| First Named Inventor: |
Dalsgaard |
| Assignee: |
Harman Professional (Martin) |
| Continuation or Divisional of: |
|
| International Classification: |
F21S 8/00 |
| US Classification: |
H02K 37/22 |
| Issue Date: |
07-02-2019 |
| Filing Date: |
02-09-2018 |
| Application : |
15/892897 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
10340782 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
10340782 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
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