Pick hole guard for manhole covers

摘要

Pick hole guards are provided for use in guarding pick holes on manhole covers. In some embodiments of the present invention, 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.

主权项

1. A manhole cover assembly comprising:
a movable guard member at least partially disposed below a bottom facing surface of the manhole cover; a base coupled to the bottom facing surface of the manhole cover; and a biasing member attached to the base and attached to the movable guard member, for biasing the movable guard member toward a pick hole of the manhole cover, the biasing member being configured to require at least ten pounds of force to displace the movable guard member away from the pick hole.