Electricity: circuit makers and breakers – Electric switch details – Contact
Reexamination Certificate
2005-04-12
2005-04-12
Scott, James R. (Department: 2832)
Electricity: circuit makers and breakers
Electric switch details
Contact
C200S237000, C200S286000, C403S410000, C411S411000, C411S548000
Reexamination Certificate
active
06878890
ABSTRACT:
An improved lockable fastener that can be employed in a circuit breaker application includes a first member and a second member that are threadably cooperable with one another and a locking member that extends between the first and second members to resist loosening of the first and second members. The second member includes a threaded shank that is threadably received in a first threaded portion of a cavity formed in the first member. The locking member includes a threaded body and a taper, with the threaded body being threadably receivable in a second threaded portion of the first member, and with the taper being at least partially receivable in a receptacle formed in the shank of the second member. The receptacle defines a seat on the shank, and the taper engages the seat to deform at least a portion of the shank into engagement with a ledge that is interposed between the first and second threaded portions of the cavity.
REFERENCES:
patent: 5146194 (1992-09-01), Altenhof et al.
patent: 6563407 (2003-05-01), Kramer
Carothers Arthur D.
Parks David A.
Stay Amelia M.
Eaton Corporation
Moran Martin J.
Scott James R.
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