Pre-duct devices and methods for making air ducts
US10139018B2 · kind B2 · utility
0Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2016 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Apr 3, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H1/00564
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A foam duct is provided. Among other applications, it may be used in automotive HVAC systems. The method of making this duct reduces material waste and provides an unexpectedly reliable joint in a duct at a sharp or rounded corner. In place, the airflow further supports the joint. In the method, a first portion of a hollow pre-duct is joined with a second portion of a hollow pre-duct by bending the portions at a cut-out positioned between the portions. The bending is complete when the portions form a mechanical connection, which may be signaled by tactile or audible feedback.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.