Patent · US Active

Pick hole guard for manhole covers

US9909276B2 · kind B2 · utility

0Cited by

11References

15Claims

0Family size

Assignee

6672205 CANADA INCORPORATED · CA

Inventors

Tina Thompson · Coquitlam, CA
Ted Gilligan · Burnaby, CA
Mark Taylor · North Vancouver, CA

Key dates

Filing date	Aug 16, 2016
Grant date	Mar 6, 2018
Priority date	—
Expiry date	Aug 16, 2036

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE02D2200/1628
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Pick hole guards are provided for use in guarding pick holes on manhole covers. In some embodiments of the present disclosure, the pick hole guards can have a base, biasing member, and guard member. The biasing member can be attached to the base and guard member, and can bias the guard member toward a pick hole on the manhole cover to guard the pick hole. In other embodiments, the pick hole guards do not have movable guard members, but instead have retaining surfaces to serve as a receptacle for catching waste disposed through a pick hole.

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