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US 12,747,556 B2Granted
Manhole cover assembly
AssigneeNeenah Foundry Company
InventorHassan Shokouhi
Life of this patent
Estimating the term…
Abstract
A manhole cover assembly includes a manhole cover supportable by a seat of a manhole frame and a latch assembly. The latch assembly includes a latch housing, a latch bar, and a padlock. The latch housing is fixedly coupled to the manhole cover and defines a channel that extends through the latch housing. The latch bar is coupled to the channel and is slidable relative to the latch housing between a locked position and an unlocked position. The padlock is operatively coupled to the latch bar and is configured to maintain the latch bar in the locked position.
Claims19
A manhole cover assembly, comprising:
- a manhole frame having a seat;
- a manhole cover supportable by the seat of the manhole frame;
- and
- a latch assembly, including:
- a latch housing fixedly coupled to the manhole cover, the latch housing having a channel extending through the latch housing and a shackle recess extending into a bottom wall of the latch housing and intersecting the channel;
- a latch bar slidably coupled to the channel, the latch bar slidable relative to the latch housing between a locked position and an unlocked position,
- a padlock operatively coupled to the latch bar and configured to maintain the latch bar in the locked position, the padlock comprising a shackle received within the shackle recess.
4 more elements
A manhole cover assembly, comprising:
- a manhole frame having a seat;
- a manhole cover supportable by the seat of the manhole frame;
- and
- a latch assembly, including:
- a latch housing fixedly coupled to the manhole cover, the latch housing having a channel extending through the latch housing;
- a latch bar slidably coupled to the channel, the latch bar slidable relative to the latch housing between a locked position and an unlocked position, the latch bar including:
- a latch rod positioned within the channel and slidable along an axis;
- a latch member extending away from the latch rod, the latch member having a latch configured to engage a catch of the manhole frame to prevent removal of the manhole cover from the manhole frame;
- and
- a lock boss extending away from the latch rod and positioned away from the latch member;
- and
- a padlock operatively coupled to the latch bar and configured to maintain the latch bar in the locked position, the lock boss cooperating with the latch member and the latch rod to define a lock cavity configured to receive the padlock.
9 more elements
A manhole cover assembly, comprising:
- a manhole cover supportable by a seat of a manhole frame;
- and
- a housing extending from the manhole cover, the housing having sidewalls and a bottom wall;
- a channel extending into the bottom wall and extending through the sidewalls such that a first opening and a second opening are defined within the sidewalls;
- a shackle recess extending into the channel and the bottom wall, the shackle recess extending through the channel;
- and
- a latch bar positioned within the channel and extending through both the first opening and the second opening, the latch bar comprising:
- a latch rod extending through the first opening;
- a latch member extending through the second opening;
- and
- a lock boss extending from the latch rod and separated from the latch member such that a lock cavity is defined cooperatively by the lock boss, the latch rod, and the latch member.
8 more elements
A latch assembly for a manhole cover, the latch assembly comprising:
- a housing having sidewalls and a bottom wall cooperatively defining a housing cavity;
- a first channel extending through the sidewalls such that a first opening and a second opening are defined through the sidewalls;
- and
- a latch bar slidable within the first channel between a locked position and an unlocked position, the latch bar slidable through both the first opening and the second opening, the latch bar comprising:
- a latch rod having a first rod end and a second rod end opposite to the first rod end, the first rod end extending through the first opening;
- a latch member coupled to the second rod end and extending through the second opening;
- and
- a lock boss extending from the latch rod between the first rod end and the latch member, the lock boss separated from the latch member such that a lock cavity is defined cooperatively by the lock boss, the latch rod, and the latch member, the lock cavity for receiving a portion of a padlock.
5 more elements
Dependencies are inferred from the claim text.