Thermostat with lock for inhibiting removal and access

Details Thermostat with lock for inhibiting removal and access Thermostat with lock for inhibiting removal and access

2008-05-01

2009-08-04

Ngo, Hung V (Department: 2831)

Electricity: conductors and insulators

Boxes and housings

With electrical device

C174S050000, C174S561000, C220S210000, C220S242000

Reexamination Certificate

active

07569777

ABSTRACT:
A thermostat is provided that includes a lock disposed in a sub-base, which includes a cam coupled to the lock to permit rotation of the cam between an unlocked and a locked position. The cam includes an offset portion that is configured to rotate over a vertical retaining portion of the thermostat housing, to retain the thermostat housing to the sub-base. The cam further includes an outwardly extending portion, wherein the outwardly extending portion is configured to rotate adjacent to a door that is pivotally coupled to the thermostat housing. When the cam is in the locking position, pivoting of the door is impeded by the outwardly extending portion of the cam, to resist pivotal movement of the door and thereby inhibit access to one or more input means or controls of the thermostat.

REFERENCES:
patent: 3752900 (1973-08-01), Harrison et al.
patent: 4588851 (1986-05-01), Turner
patent: 4840584 (1989-06-01), Cox
patent: 6024236 (2000-02-01), Jannot et al.
patent: 6028268 (2000-02-01), Stark et al.
patent: 7227083 (2007-06-01), Ciemny et al.
patent: 2003/0127458 (2003-07-01), Dushane et al.
patent: 2007/0144779 (2007-06-01), Vicente et al.
patent: 2008/0257601 (2008-10-01), Fabrizi et al.

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