Fixture for attaching a grate to a drainage channel
US5564860A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 1995 |
| Grant date | Oct 15, 1996 |
| Priority date | — |
| Expiry date | Mar 22, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F2005/063
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A grate attachment fixture is disclosed which rotationally engages a locking bar with the opposed sidewalls of a drainage channel and which thereafter secures a grate to the drainage channel. The grate attachment fixture includes a rotatable connector adapted to adjustably interconnect the locking bar and the grate. The grate attachment fixture also includes a grate securing member affixed to the locking bar. The grate securing member includes a pair of adjustment surfaces including a positive engagement surface for engaging a portion of the connector such that upon rotation of the connector in a first angular direction, the locking bar initially rotates within the trench in the first angular direction until the first locking bar engages the opposed sidewalls. Thereafter, the positive engagement surface cooperates with the connector to apply a tensile force between the grate and the locking bar upon further rotation of the connector. The adjustment surfaces also include a latching surface, adjoining the positive engagement surface, adapted to maintain the connector in a tensioned state between the grate and the locking bar. Thus, the grate will remain securely attached to the drain…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.