Sound absorbing panels for elevator
US-2021147185-A1 · May 20, 2021 · US
Sound absorbing panels for elevator
US11279594B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11279594-B2 |
| Application number | US-201916684148-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 14, 2019 |
| Priority date | Nov 14, 2019 |
| Publication date | Mar 22, 2022 |
| Grant date | Mar 22, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A panel assembly for an elevator cab includes an outer panel that defines an exterior surface of the elevator cab. A first inner panel is spaced from the outer panel and at least partially defines a first cavity with the outer panel. A foam panel is located adjacent one of the outer panel and the first inner panel. A first passage opening is associated with the first panel and is in fluid communication with a ventilation passage at least partially defined by one of the inner panel or the outer panel.
First claim
Opening claim text (preview).
What is claimed is: 1. A panel assembly for an elevator cab comprising: an outer panel defining an exterior surface and a ceiling of the elevator cab; a first inner panel spaced from the outer panel and at least partially defining a first cavity with the outer panel; a second inner panel at least partially defining a ventilation passage with the first inner panel; a foam panel located adjacent one of the outer panel and the first inner panel; and a first passage opening associated with the first panel and in fluid communication with the ventilation passage. 2. The panel assembly of claim 1 , wherein at least one of the first inner panel and the second inner panel is perforated. 3. The panel assembly of claim 2 , where the at least one of the first inner panel and the second inner panel that is perforated includes a perforation ratio of less than 50% and more than 0.01%. 4. The panel assembly of claim 1 , wherein the first inner panel and the second inner panel are both perforated panels. 5. The panel assembly of claim 1 , further comprising a first pair of end walls at least partially define the first cavity with the outer panel. 6. The panel assembly of claim 5 , further comprising a second pair of end walls at least partially defining the ventilation passage with the first pair of end walls. 7. The panel assembly of claim 1 , further comprising a second passage opening in fluid communication with the passage opening and a fan located adjacent one of the first passage opening and the second passage opening. 8. The panel assembly of claim 1 , wherein both the first inner panel and the second inner panel is perforated. 9. The panel assembly of claim 8 , where both the first inner panel and the second inner panel are perforated includes a perforation ratio of less than 50% and more than 0.01%. 10. The panel assembly of claim 8 , wherein the foam panel located adjacent the second inner panel. 11. The panel assembly of claim 10 , further comprising a first pair of end walls at least partially define the first cavity with the outer panel. 12. The panel assembly of claim 11 , further comprising a second pair of end walls at least partially defining the ventilation passage with the first pair of end walls.
Assignees
Inventors
Classifications
- B66B11/0226Primary
Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation · CPC title
- B66B11/024Primary
Ventilation systems · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11279594B2 cover?
- A panel assembly for an elevator cab includes an outer panel that defines an exterior surface of the elevator cab. A first inner panel is spaced from the outer panel and at least partially defines a first cavity with the outer panel. A foam panel is located adjacent one of the outer panel and the first inner panel. A first passage opening is associated with the first panel and is in fluid commu…
- Who is the assignee on this patent?
- Otis Elevator Co
- What technology area does this patent fall under?
- Primary CPC classification B66B11/0226. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 22 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).