Aerodynamic resistance weld pin
US6497543B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 20, 2001 |
| Grant date | Dec 24, 2002 |
| Priority date | — |
| Expiry date | Nov 20, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B2043/008
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A resistance weld pin for connecting batts of insulation to the interior of ducts is disclosed, the pin having superior aerodynamic properties which minimize turbulence in the duct flow stream and reduce the tendency of increments of the insulation surrounding the pin will become separated from the main body of the bott when introduced into the air stream. The pin assembly comprises a washer and a pin component projecting through the washer. The upper surface of the washer includes an annular depressed trough surrounding the head of the pin. Preferably the head is disposed within a central depression in the washer, the upper surface of the head forming a contact surface for the applying electrode and lying in a plane above an annular platform extending between the trough and the depression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.