Securing mechanism for an electricity metering device
AssigneeSchlumberger Canada Limited
InventorChesley R. Howell
Life of this patent
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Abstract
A securing mechanism for an electricity metering device (30) including a housing (34) having a cavity, a cover (36) positioned on the housing (34) and enclosing said cavity, the cover (36) including hinge pins (120,122) for attaching the cover (36) to the corresponding hinge slots (80,82) on the housing (34) and a sealing screw (126) connected to the cover (36) for releasably securing the cover (36) to the housing (34). The sealing screw (126) is threaded through a hole (124) in the cover (36), and includes an opening (158), and the cover further includes a lug (162) defining a second opening (164) positioned for cooperation and registration with the first opening (158) when the sealing screw (126) has secured the cover (36) to the housing (34).
Claims9
A securing mechanism for an electricity metering device including a housing having a cavity, the securing mechanism comprising:
- a cover connected to the housing with hinge means;
- a first opening on the cover;
- a lug on the cover adjacent the first opening, the lug defining a second opening;
- and
- a sealing screw including a head having a cross-drilled hole, whereby the sealing screw is inserted into the first opening in the cover, screwed into the housing, and rotated until the cover is secured over the housing and the cross-drilled hole is aligned with the second opening on the lug, whereby a sealing wire is passed through the second opening and the cross-drilled hole in the sealing screw.
A securing mechanism for an electricity metering device including a housing having a cavity, the securing mechanism comprising:
- a cover connected to the housing with hinge means;
- a first opening on the cover;
- a lug on the cover adjacent the first opening, the lug defining a second opening;
- and
- a sealing screw including a head having a cross-drilled hole, a threaded end portion, and a reduced diameter unthreaded intermediate portion, whereby the sealing screw is inserted into the first opening on the cover and slides relative to the cover over the length of the unthreaded intermediate portion, thereby allowing the cover to swing into contact with the housing prior to engagement of the sealing screw, and whereby the sealing screw is screwed into the housing, and rotated until the cover is secured over the housing and a cross-drilled hole is aligned with the second opening on the cover, and whereby a sealing wire is passed through the second opening and the cross-drilled hole in the sealing screw.
Dependencies are inferred from the claim text.