Locking fire hydrant
AssigneeSigelock Systems, L.L.C.
InventorsGeorge Sigelakis, Matthew Hayduk
Life of this patent
Estimating the term…
Abstract
An opening tool for a locking cap of a fire hydrant includes a collar with multiple protrusions that can attach to corresponding protrusions provided on an outer surface of the locking cap. The opening tool also includes a main support portion coupled to the collar, a guide supported by the main support portion, the guide including a shaft support, a pin moveably disposed within the guide and a cam lever rotatably coupled to the guide by a shaft. The shaft extending through the cam lever. The shaft being supported by a shaft support. The cam lever including a cam surface in contact with a first end of the pin. The cam surface including a first flat surface, a second flat surface and a curved surface that extends between the first flat surface and the second flat surface.
Claims16
An opening tool for a locking cap of a fire hydrant, comprising:
- a collar having a plurality of protrusions, the plurality of protrusions being configured to attach to a corresponding plurality of protrusions provided on an outer surface of the locking cap;
- a main support portion coupled to the collar;
- a guide supported by the main support portion, the guide including a shaft support;
- a pin moveably disposed within the guide;
- and
- a cam lever rotatably coupled to the guide by a shaft, the shaft extending through the cam lever, the shaft being supported by a shaft support, the cam lever including a cam surface in contact with a first end of the pin, and the cam surface including a first flat surface, a second flat surface and a curved surface that extends between the first flat surface and the second flat surface.
Method of removing a locking cap from a fire hydrant, comprising:
- attaching an opening tool to the locking cap, the opening tool including a collar having a plurality of protrusions, wherein attaching the opening tool to the locking cap includes engaging the plurality of protrusions to a corresponding plurality of protrusions provided on an outer surface of the locking cap;
- the opening tool further including a cam lever rotatably coupled to the opening tool, the cam lever including a cam surface in contact with a first end of a pin, the pin including a second end, the second end of the pin being opposite from the first end of the pin, the second end of the pin engaging an actuator pin in the locking cap;
- rotating the cam lever to depress the first end of the pin and cause the second end of the pin to depress an actuator pin of the locking cap to unlock an internal locking mechanism in the locking cap, wherein the internal locking mechanism disengages an inner surface of the fire hydrant when unlocked;
- and
- removing the locking cap from the fire hydrant.
Method of installing a locking cap in a fire hydrant, comprising:
- attaching an opening tool to the locking cap, the opening tool including a collar having a plurality of protrusions, wherein attaching the opening tool to the locking cap includes engaging the plurality of protrusions to a corresponding plurality of protrusions provided on an outer surface of the locking cap;
- the opening tool further including a cam lever rotatably coupled to the opening tool, the cam lever including a cam surface in contact with a first end of a pin, the pin including a second end, the second end of the pin being opposite from the first end of the pin, the second end of the pin engaging an actuator pin in the locking cap;
- rotating the cam lever to depress the first end of the pin and the second end of the pin to depress an actuator pin of the locking cap to unlock an internal locking mechanism in the locking cap;
- mounting the locking cap in an outlet port of the fire hydrant;
- rotating the cam lever to allow the first end of the pin not be depressed and the second end of the pin to allow the actuator pin of the locking cap to lock the internal locking mechanism in the locking cap, wherein the internal locking mechanism engages an inner surface of the fire hydrant when locked;
- and
- detaching the opening tool from the locking cap.
Dependencies are inferred from the claim text.