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US 9,218,926 B1Granted
Normally-closed switch with positive stops
AssigneeE.M.B. Corporation
InventorAnthony E. Pierce
Life of this patent
Estimating the term…
Abstract
A normally-closed switch comprises: a housing; a push button that is mounted for movement with respect to the housing; a stationary terminal; a moveable terminal that, when in contact with the stationary terminal, completes a circuit; and one or more positive stops that engage the stationary terminal. When a force is applied to the push button, the moveable terminal breaks contact with the stationary terminal, thus opening the circuit. The one or more positive stops apply pressure to and maintain a predetermined position of the stationary terminal, but do not interfere with or impede the moveable terminal.
Claims14
A normally-closed switch, comprising:
- a housing that defines an internal cavity;
- a push button that is mounted for movement with respect to the housing;
- a stationary terminal;
- a moveable terminal that, when in contact with the stationary terminal, completes a circuit;
- an internal post member that extends between the push button and the moveable terminal, wherein an opening is defined by and through the stationary terminal, and the internal post member passes through the opening defined by and through the stationary terminal to engage the moveable terminal;
- and
- one or more positive stops that engage the stationary terminal;
- wherein, when a force is applied to the push button, the push button rotates and forces the internal post member to move downward and apply pressure to the moveable terminal, causing the moveable terminal to break contact with the stationary terminal, thus opening the circuit;
- and
- wherein, the one or more positive stops apply pressure to and maintain a predetermined position of the stationary terminal, but do not interfere with or impede the moveable terminal.
7 more elements
A normally-closed switch, comprising:
- a housing that defines an internal cavity;
- a push button that is mounted for movement with respect to the housing;
- a stationary terminal;
- a moveable terminal that, when in contact with the stationary terminal, completes a circuit;
- an internal post member that extends between the push button and the moveable terminal, wherein an opening is defined by and through the stationary terminal, and the internal post member passes through the opening defined by and through the stationary terminal to engage the moveable terminal;
- a cover that closes access to the internal cavity defined by the housing;
- one or more positive stops extending from the cover and engaging the stationary terminal;
- wherein, when a force is applied to the push button, the push button rotates and forces the internal post member to move downward and apply pressure to the moveable terminal, causing the moveable terminal to break contact with the stationary terminal, thus opening the circuit;
- and
- wherein, the one or more positive stops extending from the cover apply pressure to and maintain a predetermined position of the stationary terminal, but do not interfere with or impede the moveable terminal.
7 more elements
A normally-closed switch, comprising:
- a housing that defines an internal cavity;
- a push button that is mounted for movement with respect to the housing;
- a stationary terminal, including a first portion that is rigidly secured within the internal cavity defined by the housing and serves as a blade connector, along with a second portion that extends from the first portion;
- a moveable terminal, including a first portion that is rigidly secured within the internal cavity defined by the housing and serves as a blade connector, along with a second portion that extends from the first portion in a cantilever arrangement, wherein, when in contact with the stationary terminal, said moveable terminal completes a circuit;
- an internal post member that extends between the push button and a distal end of the second portion of the moveable terminal;
- and
- one or more positive stops that engage the second portion of the stationary terminal;
- wherein an opening is defined by and through the second portion of the stationary terminal, and the internal post member passes through the opening defined by and through the second portion of the stationary terminal to engage the second portion of the moveable terminal;
- wherein, when a force is applied to the push button, the push button rotates and forces the internal post member to move downward and apply pressure to the distal end of the second portion of the moveable terminal, causing the moveable terminal to deflect and rotate downward relative to the first portion of the moveable terminal and break contact with the stationary terminal, thus opening the circuit;
- and
- wherein, the one or more positive stops apply pressure to and maintain a predetermined position of the second portion of the stationary terminal, but do not interfere with or impede the moveable terminal.
8 more elements
Dependencies are inferred from the claim text.