Fitting for ENT tubing
US7387288B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2003 |
| Grant date | Jun 17, 2008 |
| Priority date | — |
| Expiry date | Mar 29, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L25/0045
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fitting for attaching ENT tubing to a concrete form has an inverted cup-like configuration with a bottom opening and an internal cavity within a fitting wall. A flange extends outwardly from the fitting wall around the bottom opening and has fastener-receiving holes for attaching the fitting to a plane surface of a concrete form. A socket extends through the fitting wall into the cavity for receiving an end portion of an ENT tube. The socket has a plurality of circumferentially-spaced resilient fingers that are inclined inwardly toward the socket axis for gripping an ENT tube. A pair of opposite fingers have teeth that are receivable in an annular groove in an end portion of a corrugated ENT tube. The teeth have rounded ends to facilitate ratcheting movement of the ENT tube end portion both into and out of the socket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.