Patent · US Active

Cover element

US9169630B2 · kind B2 · utility

2Cited by

1References

11Claims

0Family size

Assignee

ACO SEVRIN AHLMANN GMBH & CO KG · DE

Inventors

Thorsten Wichmann · Westerburg, DE
Arne Meincke · Osdorf, DE
Jan Mieze · Hamburg, DE

Key dates

Filing date	Jan 23, 2013
Grant date	Oct 27, 2015
Priority date	—
Expiry date	Jan 23, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24273
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

The invention concerns a cover element for covering an opening in an in particular horizontal surface of a drainage body, with an edge region which is configured to support the cover element on the drainage body, and with a cover region which has a grid-like or perforated structure with supporting elements. It is distinguished in that the supporting elements have a thickness increasing in the vertical direction starting from the edge region in the direction of the regions remote from the edge, such that the cover element has a substantially plano-convex outer contour.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.