Electrical switch construction and improved overtravel switch blade therefor and method of making the same
AssigneeRobertshaw Controls Company
InventorsKhiman K. Pursnani, Roger P. Sepso
Life of this patent
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Abstract
An electrical switch construction having a housing provided with an acutuator for causing movement of a movable switch blade relative to an overtravel compensating fixed switch blade, the fixed switch blade being secured to a rigid terminal carried by the housing and having an extension thereof that is disposed in the path of movement of the fixed switch blade to limit movement thereof in one direction.
Claims18
In an electrical switch construction having a housing means provided with an actuator for causing movement of a movable switch blade relative to an overtravel compensating fixed switch blade to effect an electrical switching operation, a rigid terminal being carried by said housing means and being secured to said fixed switch blade, said terminal having an extension thereof that is disposed in the path of movement of said fixed switch blade to limit movement of said fixed switch blade to limit movement thereof in one direction, said terminal having a first part thereof that is secured to said fixed switch blade and having a second part thereof that carries said extension thereof, said second part carrying said extension in a position to be out of the plane of said first part thereof, said fixed switch blade having opposed ends and having an electrical contact between said opposed ends thereof, the improvement wherein one of said ends of said fixed switch blade is secured to said first part of said terminal and the other of said ends is engageable with said extension of said terminal only at a point outboard of said contact.
An overtravel fixed switch blade for an electrical switch construction having a housing means provided with an acutator for causing movement of a movable switch blade relative to said overtravel compensating fixed switch blade to effect an electrical switching operation comprising a fixed switch blade, and a rigid terminal adapted to be carried by said housing means and being secured to said fixed switch blade, said terminal having an extension thereof that is disposed in the path of movement of said fixed switch blade to limit movement thereof in one direction, said terminal having a first part thereof that is secured to said fixed switch blade and having a second part thereof that carries said extension thereof, said second part carrying said extension in a position to be out of the plane of said first part thereof, said fixed switch blade having opposed ends and having an electrical contact between said opposed ends thereof, one of said ends being secured to said first part of said terminal and the other of said ends being engageable with said extension of said terminal only at a point outboard of said contact.
A method for making an overtravel fixed switch blade for an electrical switch construction having a housing means provided with an actuator for causing movement of a movable switch blade relative to said overtravel compensating fixed switch blade to effect an electrical switching operation comprising the steps of providing a fixed switch blade, providing a rigid terminal adapted to be carried by said housing means, securing said terminal to said fixed switch blade, forming said terminal with an extension thereof that is disposed in the path of movement of said fixed switch blade to limit movement thereof in one direction, forming said terminal to have a first part thereof that is secured to said fixed switch blade and having a second part thereof that carries said extension thereof in a position to be out of the plane of said first part thereof, forming said fixed switch blade with opposed ends and with the contact thereof being located between said opposed ends thereof, and securing one of said ends to said first part of said terminal so that the other of said ends is engageable with said extension of said terminal only at a point outboard of said contact.
Dependencies are inferred from the claim text.