Interlock switch housing
United States Patent D354738

Zimmermann, Jerome E. (Southington, CT)
Dennison, John J. (Southington, CT)
Application Number:
Publication Date:
Filing Date:
Hubbell Incorporated (Orange, CT)
Primary Class:
Other Classes:
Field of Search:
D13/152, D13/158, D13/169, D13/184, 361/615, 174/52.1, 174/56, 174/64, 174/65R, 200/43.11, 200/5R, 200/5B, 200/51.11, 200/51.12, 200/297
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US Patent References:
5243157Lockable handleSeptember, 1993Hoffman200/43.11
4713498Switch gearDecember, 1987Ludwig et al.200/5R
4553000Plug and receptacle with separable switch contactorsNovember, 1985Appleton200/50B
4503293Interlocking plug and receptacle mechanism with actuating meansMarch, 1985Knecht200/50B
D274145Explosion-proof box for electrical componentsJune, 1984KimberlinD13/184
3735078EXPLOSION PROOF BOX WITH DOOR MOUNTED SWITCHMay, 1973Appleton et al.200/50B

Primary Examiner:
Burke, Wallace R.
Assistant Examiner:
Sincavage, Joel
Attorney, Agent or Firm:
Presson, Jerry M.
Farley, Walter C.
1. The ornamental design for an interlock switch housing, as shown anddescribed.


FIG. 1 is a perspective view of an interlock switch in accordance with the invention;

FIG. 2 is a front elevation of the interlock switch of FIG. 1;

FIG. 3 is a bottom plan view of the interlock switch of FIGS. 1 and 2;

FIG. 4 is a right side elevation of the interlock switch;

FIG. 5 is a left side elevation of the interlock switch;

FIG. 6 is a rear elevation of the interlock switch; and,

FIG. 7 is a rear perspective view of the interlock switch.

The broken lines in FIGS. 6 and 7 is included for the purpose of illustrating environmental structure only and forms no part of the claimed design.