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US 7,115,823 B1Granted
Electrical transfer switch
OwnerAlberto Anaya-Burgosinventor
Life of this patent
Estimating the term…
Abstract
A switch operates between a first and a second position which selectively connects a load to a first and a second power supply. The connections are made by sliding one or more rods along their axis. The ends of the rods fit within channels to form electrical contact with the first and second power supply.
Claims10
A switch especially suitable for connecting a load to one of two power supplies, the switch comprising:
- a first set of connections for connecting with a first power supply;
- a second set of connections for connecting with a second power supply;
- a first and a second set of contacts, wherein each of the contacts has a first connection block defining a first surface channel extending from a first end to a second end of the first connection block and a second connection block defining a second surface channel extending from a first end to a second end of the second connection block wherein the first surface channel and the second surface channel are aligned to define an interior channel open at the first and second ends of the first and second connection blocks, wherein the first set of contacts is electrically coupled with the first set of connections and the second set of contacts is electrically coupled with the second set of connections;
- a third set of connections for connecting to a load;
- and
- a set of plungers electrically coupled with the third set of connections, wherein the plungers have a first end and a second end, wherein the first ends of the plungers are configured to fit within and make electrical contact with the interior channels defined by the first set of contacts and the second ends of the plungers are configured to fit within and make electrical contact with the interior channels defined by the second set of contacts.
3 more elements
A three-phase switch especially suitable for selecting between two power sources comprising:
- a housing;
- a first set of connections for connecting with a first power source;
- a first set of cylinders electrically connected with the first set of connections, wherein each of the cylinders have an electrically conductive inner wall;
- a second set of connections for connecting with a second power source;
- a second set of cylinders electrically connected with the second set of connections, wherein each of the cylinders have an electrically conductive inner wall;
- a third set of connections for connecting with a load;
- a set of pistons electrically connected with the third set of connections, wherein each of the pistons has an electrically conductive outer wall that is sized to fit within the inner walls of the first set of cylinders and the inner walls of the second set of cylinders, and wherein the set of pistons are switchable between a first and a second position, wherein the first position establishes an electrical connection between the first power source and the load by electrical contact between the electrically conductive outer walls of the set of pistons and the electrically conductive inner walls of the first set of cylinders and wherein the second position establishes an electrical connection between the second power source and the load by electrical contact between the electrically conductive outer walls of the set of pistons and the electrically conductive inner walls of the second set of cylinders.
4 more elements
Dependencies are inferred from the claim text.