Shuttered receptacle

An electrical receptacle having shuttered slots comprising:

• a cover containing slots along a face of said cover for entry of prongs of an electrical plug;
• a housing within said cover behind said slots;
• a shutter contained within said housing, said shutter including a stationary member and two sliding members, said housing having guide structures for guiding the movement of said movable members;
• each of said movable members having a longitudinal spine, and a barrier for closing the passageway of one of said slots and a cam, partially blocking the passageway of another of said slots, for moving said barrier, said barrier and cam protruding transversely from said spine, said spine being oriented parallel to an axis passing from one of said slots to a second of said slots;
• and wherein
• said barrier and said cam are displaced from each other in both longitudinal and transverse directions about said spine to permit an interleaving of the barrier and cam of one of said movable members with, respectively, the cam and barrier of the other of said movable members.

A shutter for an electrical receptacle comprising:

• a pair of blades and a pair of cams, said blades being spaced apart by a distance equal to the spacing between a corresponding pair of entry points in said receptacle through which electric contacts enter said receptacle;
• means for sliding said blades in a common plane behind said entry points, said cams being positioned between said blades and said entry points;
• first means for coupling a first of said cams which is adjacent a first of said entry points to a second of said blades which is adjacent and blocking a second of said entry points, said first coupling means being configured to permit a slidable nesting of a second of said cams which is adjacent said second of said entry points and the first of said blades therein which is adjacent and blocking said first of said entry points;
• and
• second means for coupling the second of said cams to the first of said blades.

A shutter for selectively opening the slots of an electrical receptacle, said shutter comprising:

• a frame and a pair of slides in contact therewith for sliding thereon;
• each of said slides being formed of a longitudinal member having two transverse members coupled thereto, said transverse members being offset from each other in both longitudinal and transverse directions relative to said longitudinal member;
• one of said slides being located about said frame in opposed relationship to the other of said slides wherein said longitudinal member of one of said slides is spaced apart from the longitudinal member of the other of said slides;
• a first of said transverse members in each of said slides serves as a barrier for closing the passageway of one of said slots, said second transverse member in each of said slides serving as a cam for deflecting said barrier;
• resilient spacer means for spacing said first transverse member in each of said slides with a spacing corresponding to the spacing between said slots of said receptacle;
• a cam surface disposed along an inner aspect of said cam;
• and
• spring means for urging said cams toward each other, said spring means comprising a spring member formed integrally with one of said slides.

A shutter for selectively opening the slots of an electrical receptacle, said shutter comprising:

• a frame and a pair of slides in contact therewith for sliding thereon;
• each of said slides being formed of a longitudinal member having two transverse members coupled thereto, said transverse members being offset from each other in both longitudinal and transverse directions relative to said longitudinal member;
• one of said slides being located about said frame in opposed relationship to the other of said slides wherein said longitudinal member of one of said slides is spaced apart from the longitudinal member of the other of said slides;
• a first of said transverse members in each of said slides serves as a barrier for closing the passageway of one of said slots, said second transverse member in each of said slides serving as a cam for deflecting said barrier;
• a cam surface disposed along an outer aspect of said cam;
• and
• spring means for urging said cams away from each other.

An electrical receptacle having shuttered slots comprising:

• a cover containing slots along the face of said cover for entry of prongs of an electrical plug;
• a housing within said cover behind said slots;
• a shutter contained within said housing, said shutter including a stationary member and two sliding members, said housing having guide structures for guiding the movement of said moveable members;
• each of said moveable members having a longitudinal spine, and a barrier and a cam protruding transversely from said spine, said spine being oriented parallel to an axis passing from one of said slots to a second of said slots;
• said barrier and said cam being displaced from each other in both longitudinal and transverse directions about said spine to permit an interleaving of the barrier and cam of one of said moveable members with, respectively, the cam and barrier of the other of said moveable members;
• the barrier of one of said moveable members being contiguous to the cam of the other of said moveable members, the corresponding contiguous surfaces of said barrier and said cam being configured to permit a sliding of said barrier of said first of said moveable members past said cam of said second of said moveable members;
• a cam surface of said cam facing one of said slots for engagement with a prong of said electrical plug;
• and
• spring means for urging the cam of one of said moveable members away from the cam of the other of said moveable members, said stationary member having a guide which abuts leading edges of the barriers of respective ones of said moveable members in the absence of a deflecting force upon one of said cams.

A shutter for the slots of an electrical receptacle comprising:

• a pair of identical slides each of which comprises a spine and two legs extending transversely thereof, the two legs in each of said slides having a spacing equal to the spacing between two slots of said receptacle, the two legs in each of said slots being displaced in opposite directions about a plane parallel to a longitudinal axis of the spine of the slide, the spine of one of said slides being configured to accommodate a sliding movement of the ends of the legs of the other of said slides;
• means responsive to the force of an electrical plug which mates with said receptacle for displacing said slides about said slots;
• and
• means coupled to said slides for restoring their positions relative to said slosts upon removal of said force of said electrical plug, said restoring means comprising springs integrally formed with each of said slides.

A shutter for an electrical receptacle comprising:

• a pair of blades and a pair of cams, said blades being spaced apart by a distance equal to the spacing between a corresponding pair of entry points in said receptacle to which electric contacts enter said receptacle;
• means for sliding said blades in a common plane behind said entry points, said cams being positioned between said blades and said entry points;
• first means for coupling a first of said cams which is adjacent a first of said entry points to a second of said blades which is adjacent a second of said entry points, said first coupling means being configured to permit a slidable nesting of the second of said cams and the first of said blades therein;
• second means for coupling the second of said cams to the first of said blades;
• spring means connecting with said cams for urging said cams against said electric contacts, upon entry of said electric contacts;
• and
• a guide interposed between said blades, said blades being urged toward said guide in response to the force of said spring.