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US 4,790,773 AGranted
Electrical receptacle
AssigneeE. I. Du Pont de Nemours and Company
InventorMarlyn E. Hahn
Life of this patent
Estimating the term…
Abstract
An electrical receptacle having a spring contact contained therein. The spring is formed with a nonflexing portion which provides a stiff section that acts as a positive stop to prevent overstressing the spring and permanently deforming it.
Claims3
An electrical receptacle comprising:
- a formed resilient metal leaf spring member received in a through passage defined by bottom, side and top walls in a plastic supporting housing, said through passage having an inclined portion in its top wall for contacting said spring member, said spring member being formed with an arc in its central portion, said arc having a nonflexing hump formed therein and flat length continuing therefrom that serves as a stop against the bottom wall of the passage;
- and means for securing said spring member in said through passage with its central arc portion contacting said inclined portion of the through passage in the receptacle to elastically deform the arc portion of the spring to preload the spring.
An electrical receptacle comprising:
- a formed resilient metal spring member received in a through passage in a plastic supporting housing, said through passage being defined by an inclined top portion and adjacent sidewalls tapering towards each other in a downwardly direction providing a width from top to bottom that exceeds the spring member width at the top of the passage and is less than the spring member width at a location below the top of the passage, said spring member being a leaf spring formed with an arc in its central portion;
- means for securing said spring in said passage with its central arc portion contacting said inclined portion of the through passage to elastically deform said arc portion of the spring to preload the spring, said sidewalls preventing permanent deformation of said spring.
An electrical receptacle comprising:
- a formed resilient metal spring member received in a through passage in a plastic supporting housing, said through passage having an entrance for a pin to enter the passage and engage the spring member and being defined by sidewalls defining planes at the top of the passage inclined toward said entrance, a stop located in at least one of the sidewalls extending into said passage near said entrance and a lip formed at the bottom edge of said entrance, said spring member being a leaf spring formed with an arc in its central portion, a concave depression near the apex of the arc in a direction opposed to the arc portion of the spring, a bent tab at one end and a shoulder located near said bent tab, said spring being secured in said passage by the simultaneous combination of said bent tab engaging said lip, said shoulder engaging said stop and said central arc contacting said inclined planes at the top of said passage to elastically deform said arc portion of the spring to preload the spring, said concave depressions being rigid non-flexing portions of the spring that serve as stops against the bottom of the passage to prevent overstressing the spring.
Dependencies are inferred from the claim text.