DEWAR BOTTLE VALVE LOCKOUT COVER
A lockout cover for restricting access to ports, valves, regulators and/or gauges shielded by a halo handling ring on top of a Dewar bottle. The lockout cover includes a cap seatable on the halo ring. A hatch on a side of the cap can be pivoted between an open position to allow access to the ports, valves, regulators and gauges, and a closed position to allow locking the cap to the halo ring to block access to the ports, valves, regulators and gauges.
1 . A cover for a Dewar bottle having a halo ring mounted above a port on top of the bottle, comprising:
cap means seatable on the halo ring to block access to the port; and
lockable closure means for holding the cap means on the halo ring.
2 . A cover for a Dewar bottle having a circumferential dimension centered on a perpendicular axis, and an end with a handle ring centered on the axis, the cover comprising:
cap means having an inner side and an outer side; catch means pivotally attached to the cap means for rotating from an open position to a closed position where the catch means prevents removal of the cap means from the handle ring; and
locking means to facilitate locking the catch means in the closed position.
3 . The cover of claim 2 wherein the cap means comprises: a cylindrical wall member and a planar lid member.
4 . The cover of claim 3 further comprising seating means on the inner side for limiting movement of the cap means relative to the handle ring.
5 . The cover of claim 4 wherein the seating means comprises at least one hook.
6 . The cover of claim 5 wherein the seating means comprises at least one pair of hooks.
7 . The cover of claim 5 wherein the seating means comprises at least one abutment.
8 . The cover of claim 3 wherein:
the cylindrical wall member has wall ends with outward turned tabs separated by a gap;
the catch means comprises a catch box having side panels spaced apart by a distance similar to the width of the gap; and
the locking means comprises slots in each of the tabs and side panels that line up when the catch box is rotated to a closed position, and a bolt having a head, a shaft that slides through the slots, and a shaft tip with a hole.
9 . The cover of claim 8 wherein the catch box has a bottom panel with a scalloped recess to permit passage of a hose.
10 . The cover of claim 3 wherein the cylindrical wall member has perforations.
11 . A cover for a Dewar bottle having a handle ring protecting valves and ports, the cover comprising:
a cap formed of a cylindrical wall and a lid, the cylindrical wall having a circumferential periphery surrounding the handle ring and the cap covering the controls and ports;
a catch box giving access to a valve or port, pivotally mounted to a peripheral region of the cap and having an open position and a closed position, the catch box having a hook engaging the handle ring in the closed position; and
locking means for holding the catch box in the closed position to secure the valve or port.