Detachable cord set for electric device

Claim 2

A detachable cord set construction in combination with an electric powered device comprising a housing having an electric motor therein, means defining an opening formed in the exterior of said housing, plug means carried by said housing and located in said opening and fixed relative to said housing, said plug means being electrically interconnected with said motor, an extension cord having a cord connector fitting into said housing opening, said cord connector having plug means electrically interconnecting with said plug means in said opening, said cord connector also having shoulder means thereon, locking means turnably mounted within said housing for movement through less than 180*, said housing including at least one aperture therein adjacent said locking means, said locking means including a portion extending outwardly of said housing through said aperture, said locking means further including at least one shoulder means adapted to engage said shoulder means on said cord connector, said locking means being movable from a first position allowing free insertion and removal of said cord connector to and from said housing opening, to a second position where said locking means securely retains said cord connector in said housing opening by engagement of said shoulder means on said locking means with said shoulder means on said cord connector.

Claim 3

A detachable cord set construction in combination with an electric powered device comprising a housing having an electric motor therein, means defining an exteriorly accessible opening in said housing, plug means carried by said housing and located within said opening and connected to said motor, an extension cord having a cord connector at one end thereof, said cord connector being slidably fitted in said housing opening, said cord connector having plug means electrically connecting with said plug means in said opening and including a plurality of shoulder means, a locking ring turnably carried within said housing and located inwardly of the access to said housing opening, two opposed apertures in said housing adjacent said locking ring, said locking ring having two portions respectively accessible exteriorly of said housing through said apertures for manual turning thereof, said locking means further including a plurality of shoulder means adapted to engage said plurality of shoulder means on said cord connector, said locking ring being turnable in opposite directions, through less than 180*, from a first position where said cord connector is freely insertable into and removable from said housing opening, to a second position where said cord connector is securely retained within said housing opening by engagement of said shoulder means on said locking means with said shoulder means on said cord connector.

Claim 4

A detachable cord set construction in combination with an electric powered device comprising a housing having an electric motor therein, means defining an exteriorly accessible opening in said housing, plug means carried by said housing and located within said opening and connected to said motor, an extension cord having a cord connector at one end thereof, said cord connector being slidably fitted in said housing opening, said cord connector having plug means electrically connecting with said plug means in said opening and including a plurality of shoulder means, a locking ring turnably carried within said housing and located inwardly of the access to said housing opening, two opposed apertures in said housing adjacent said locking ring, said locking ring having two portions respectively accessible exteriorly of said housing through said apertures for manual turning thereof, said locking means further including a plurality of shoulder means adapted to engage said plurality of shoulder means on said cord connector, said locking ring being turnable in opposite directions, through less than 180*, from a first position where said cord connector is freely insertable into and removable from said housing opening, to a second position where said cord connector is securely retained within said housing opening by engagement of said shoulder means on said locking means with said shoulder means on said cord connector.

Claim 5

A detachable cord set in combination with an electric powered device comprising a housing having an electric motor therein, means defining an exteriorly accessible opening in said housing, plug means carried by said housing and extending into said opening, means electrically connecting said plug means with said motor, an extension cord having a cord connector at one end received in said housing opening and electrically connected to said plug means, said cord connector including a plurality of shoulder means, locking means carried by one of said housing and said cord connector and turnable through less than 180* relative to both, a plurality of apertures in said housing adjacent said locking means, said locking means including a plurality oF tab means one extending through each of said apertures, said locking means further including a plurality of shoulder means within said housing arranged to engage said shoulder means on said cord connector, said locking means, when in one position, releasably retaining said cord connector within said housing opening by engagement of said shoulder means on said locking means with said shoulder means on said cord connector, and when in another position facilitating assembly and disassembly of said cord connector and said plug means by straight axial movement, and detent means releasably retaining said locking means in said locking position.

Claim 6

A detachable cord set in combination with an electric powered device comprising a housing having an electric motor therein, means defining an exteriorly accessible opening in said housing, plug means carried by said housing and extending into said opening, means electrically connecting said plug means with said motor, an extension cord having a cord connector at one end received in said housing opening and electrically connected to said plug means, said cord connector including a plurality of shoulder means, locking means carried by one of said housing and said cord connector and turnable through less than 180* relative to both, a plurality of apertures in said housing adjacent said locking means, said locking means including a plurality oF tab means one extending through each of said apertures, said locking means further including a plurality of shoulder means within said housing arranged to engage said shoulder means on said cord connector, said locking means, when in one position, releasably retaining said cord connector within said housing opening by engagement of said shoulder means on said locking means with said shoulder means on said cord connector, and when in another position facilitating assembly and disassembly of said cord connector and said plug means by straight axial movement, and detent means releasably retaining said locking means in said locking position.

Claim 7

A detachable cord set construction in combination with an electric powered device including a housing having an electric motor disposed therein, means defining an exteriorly accessible opening in said housing, electrical connector means fixed within said opening and connected to said motor, an extension cord including a cord connector received in said opening, said cord connector including electrical connector means interfitting with said electrical connector means in said opening when said cord connector is located therein, locking means on one of said opening defining means and said cord connector and movable from a first position where said cord connector may be freely inserted into and removable from said opening defining means, to a second position where said cord connector is securely retained within said opening, said locking means being positionable substantially permanently in a third position wherein said locking means is cooperable with said opening defining means and said cord connector to substantially permanently retain said cord connector to said opening defining means.

Claim 8

A detachable cord set construction in combination with an electric powered device including a housing having an electric motor disposed therein, means defining an exteriorly accessible opening in said housing, electrical connector means fixed within said opening and connected to said motor, an extension cord including a cord connector received in said opening, said cord connector including electrical connector means interfitting with said electrical connector means in said opening when said cord connector is located therein, locking means on one of said opening defining means and said cord connector and movable from a first position where said cord connector may be freely inserted into and removable from said opening defining means, to a second position where said cord connector is securely retained within said opening, said locking means being positionable substantially permanently in a third position wherein said locking means is cooperable with said opening defining means and said cord connector to substantially permanently retain said cord connector to said opening defining means.

Claim 9

A detachable cord set construction in combination with an electrically powered device comprising a housing having an electric motor supported therein, means defining an exteriorly accessible opening in said housing, electrical connector means fixed within said opening and electrically connected to said motor, an extension cord including a cord connector at one end snugly, slidably, and nonrotatably received in said opening, said cord connector including connector means connecting with said electrical connector means in said opening, said cord connector also having shoulder means thereon, locking means mounted in said housing, releasably retaining said cord connector within said housing opening, said locking means including a ring defining an opening substantially complementary to the cross section of said cord connector, at least one aperture in said housing, said locking means including at least one portion thereof extending through said aperture, said ring including shoulder means and being turnable through a limited arc from a first position where it freely, slidably received said cord connector, to a second position angularly spaced from said first position where said shoulder means on said ring interlocks behind said shoulder means on said cord connector, detent means in said opening defining means, said ring including detent means cooperable with said detent means in said opening defining means whereby to releasably retain said ring in each of said first and second positions.

Claim 10

A detachable cord set construction in combination with an electrically powered device comprising a housing having an electric motor supported therein, means defining an exteriorly accessible opening in said housing, electrical connector means fixed within said opening and electrically connected to said motor, an extension cord including a cord connector at one end snugly, slidably, and nonrotatably received in said opening, said cord connector including connector means connecting with said electrical connector means in said opening, said cord connector also having shoulder means thereon, locking means mounted in said housing, releasably retaining said cord connector within said housing opening, said locking means including a ring defining an opening substantially complementary to the cross section of said cord connector, at least one aperture in said housing, said locking means including at least one portion thereof extending through said aperture, said ring including shoulder means and being turnable through a limited arc from a first position where it freely, slidably received said cord connector, to a second position angularly spaced from said first position where said shoulder means on said ring interlocks behind said shoulder means on said cord connector, detent means in said opening defining means, said ring including detent means cooperable with said detent means in said opening defining means whereby to releasably retain said ring in each of said first and second positions.

Claim 11

A detachable cord set construction in combination with an electrically powered device comprising a housing having an electric motor supported therein, means defining a exteriorly accessible opening in said housing, electrical plug means fixed within said opening and electrically connected to said motor, an extension cord including a cord connector at one end received in said opening, said cord connector including plug means electrically interconnecting with said plug means in said opening, said cord connector also having a plurality of shoulder means thereon, locking means mounted in said housing inwardly of the access to said housing opening for releasably retaining said cord connector within said housing opening, a pair of apertures in said housing adjacent said locking means, said locking means having a pair of operating portions accessible from outside said housing through said apertures and being movable in a plane transverse to said cord connector, said locking means being movable from a first position where it allows free, slidable insertion and removal of said cord connector into and from said housing opening, to a second position where it securely retains said cord connector within said housing opening by engagement of said locking ring with said shoulder means.

Claim 12

A detachable cord set construction in combination with an electrically powered device comprising a housing having an electric motor supported therein, means defining a exteriorly accessible opening in said housing, electrical plug means fixed within said opening and electrically connected to said motor, an extension cord including a cord connector at one end received in said opening, said cord connector including plug means electrically interconnecting with said plug means in said opening, said cord connector also having a plurality of shoulder means thereon, locking means mounted in said housing inwardly of the access to said housing opening for releasably retaining said cord connector within said housing opening, a pair of apertures in said housing adjacent said locking means, said locking means having a pair of operating portions accessible from outside said housing through said apertures and being movable in a plane transverse to said cord connector, said locking means being movable from a first position where it allows free, slidable insertion and removal of said cord connector into and from said housing opening, to a second position where it securely retains said cord connector within said housing opening by engagement of said locking ring with said shoulder means.

Claim 13

A detachable cord set construction in combination with an electric powered device comprising a housing having an electric motor therein, means defining an opening formed in the exterior of said housing, plug means carried by said housing and located in said opening and fixed relative to said housing, said plug means being electrically interconnected with said motor, an extension cord having a cord connector fitting slidably and nonrotatably into said housing opening, said cord connector having plug means electrically interconnecting with said plug means in said opening, said cord connector having an end face and recess means spaced axially inwardly of said face, said recess means defining abutting shoulder means on said cord connector, locking means movably mounted within said housing, at least one aperture through said housing, said locking means including at least one portion extending through said aperture, said locking means being movable from a first position allowing free insertion and removal of said cord connector to and from said housing opening, to a second position where said locking means extends into said recess means and engages said shoulder means to securely retain said cord connector in said housing opening.

Claim 14

A detachable cord set construction in combination with an electric powered device comprising a housing having an electric motor therein, means defining an opening formed in the exterior of said housing, plug means carried by said housing and located in said opening and fixed relative to said housing, said plug means being electrically interconnected with said motor, an extension cord having a cord connector fitting slidably and nonrotatably into said housing opening, said cord connector having plug means electrically interconnecting with said plug means in said opening, said cord connector having an end face and recess means spaced axially inwardly of said face, said recess means defining abutting shoulder means on said cord connector, locking means movably mounted within said housing, at least one aperture through said housing, said locking means including at least one portion extending through said aperture, said locking means being movable from a first position allowing free insertion and removal of said cord connector to and from said housing opening, to a second position where said locking means extends into said recess means and engages said shoulder means to securely retain said cord connector in said housing opening.

Claim 15

A detachable cord set construction in combination with an electric powered device comprising a housing having an electric motor therein, means defining an opening formed in the exterior of said housing, plug means carried by said housing and located in said opening and fixed relative to said housing, said plug means being electrically interconnected with said motor, an extension cord having a cord connector fitting slidably and nonrotatably into said housing opening in two rotative positions generally 180* apart, said cord connector having plug means electrically interconnecting with said plug means in said opening, said cord connector having a non-circular cross-section, an end face, and a pair of recesses spaced axially inwardly of said face, said recesses defining a pair of abutting shoulders on said cord connector, locking means substantially enclosed within said housing adjacent said opening, at least one aperture through said housing adjacent said locking means, said locking means including an operatorengageable portion extending through said aperture, said locking means being movable from a first position allowing free insertion and removal of said cord connector to and from said housing opening, to a second position where said locking means extends into said recesses and engages said shoulders to securely retain said cord connector in said housing opening.

Claim 16

A detachable cord set construction in combination with an electric powered device comprising a housing having an electric motor therein, means defining an opening formed in the exterior of said housing, plug means carried by said housing and located in said opening and fixed relative to said housing, said plug means being electrically interconnected with said motor, an extension cord having a cord connector fitting slidably and nonrotatably into said housing opening in two rotative positions generally 180* apart, said cord connector having plug means electrically interconnecting with said plug means in said opening, said cord connector having a non-circular cross-section, an end face, and a pair of recesses spaced axially inwardly of said face, said recesses defining a pair of abutting shoulders on said cord connector, locking means substantially enclosed within said housing adjacent said opening, at least one aperture through said housing adjacent said locking means, said locking means including an operatorengageable portion extending through said aperture, said locking means being movable from a first position allowing free insertion and removal of said cord connector to and from said housing opening, to a second position where said locking means extends into said recesses and engages said shoulders to securely retain said cord connector in said housing opening.

Claim 17

An electrically powered device comprising a housing having an electric motor supported therein, means defining an exteriorly accessible opening in said housing, electrical plug means fixed within said opening and electrically connected to said motor, locking means mounted in said housing inwardly of the access to said housing opening for releasably retaining a cord connector within said housing opening, at least one aperture in said housing adjacent said locking means, said locking means having an operating portion accessible from outside said housing through said aperture and being movable in a plane transverse to said opening, said locking means including a plurality of shoulder means and being movable from a first position where said shoulder means are aligned with said opening defining means to allow free, slidable insertion and removal of said cord connector iNto and from said housing opening, to a second position where said shoulder means extend into said opening into engagement with said cord connector to securely retain said cord connector within said housing opening.

Claim 18

An electrically powered device comprising a housing having an electric motor supported therein, means defining an exteriorly accessible opening in said housing, electrical plug means fixed within said opening and electrically connected to said motor, locking means mounted in said housing inwardly of the access to said housing opening for releasably retaining a cord connector within said housing opening, at least one aperture in said housing adjacent said locking means, said locking means having an operating portion accessible from outside said housing through said aperture and being movable in a plane transverse to said opening, said locking means including a plurality of shoulder means and being movable from a first position where said shoulder means are aligned with said opening defining means to allow free, slidable insertion and removal of said cord connector iNto and from said housing opening, to a second position where said shoulder means extend into said opening into engagement with said cord connector to securely retain said cord connector within said housing opening.

Claim 19

An electric powered device comprising a housing having an electric motor therein, means defining an exteriorly accessible opening in said housing, plug means carried by said housing and located within said opening and connected to said motor, a locking ring turnably carried within said housing, at least one aperture in said housing adjacent said locking means, said locking ring having at least a portion accessible exteriorly of said housing through said aperture for manual turning thereof, said locking ring including a plurality of shoulder means and being turnable in opposite directions, through less than 180*, from a first position where said shoulder means are aligned with said opening defining means to allow a cord connector to be freely insertable into and removable from said housing opening, to a second position where said shoulder means extend into said opening into engagement with said cord connector to securely retain said cord connector within said housing opening, and detent means releasably retaining said ring in said second position.

Claim 20

An electric powered device comprising a housing having an electric motor therein, means defining an exteriorly accessible opening in said housing, plug means carried by said housing and located within said opening and connected to said motor, a locking ring turnably carried within said housing, at least one aperture in said housing adjacent said locking means, said locking ring having at least a portion accessible exteriorly of said housing through said aperture for manual turning thereof, said locking ring including a plurality of shoulder means and being turnable in opposite directions, through less than 180*, from a first position where said shoulder means are aligned with said opening defining means to allow a cord connector to be freely insertable into and removable from said housing opening, to a second position where said shoulder means extend into said opening into engagement with said cord connector to securely retain said cord connector within said housing opening, and detent means releasably retaining said ring in said second position.