Lighting fixture

Claim 2

A lighting fixture comprising a mounting base member, a globe retainer member having a globe, complemental rotary guide means formed on said members for aligning said members for relative rotary movement in a given plane, means on said globe retainer member for securing said globe thereto, first bayonet means fixed to one of said members, second bayonet means mounted on said other member engageable with said first means responsive to relative rotation of said members in said plane, said second bayonet means being yieldable movably mounted to said other member, whereby said members, in the engaged position of said bayonet means, may be moved relative to each other.

Claim 3

A device in accordance with claim 1 wherein said first and second bayonet means include complemental detent means disposed in nested position in the engaged position of said bayonet means, for restraining relative rotation of said members.

Claim 4

A device in accordance with claim 1 wherein a floating plate member is provided carrying said second bayonet means, said plate being yieldingly biased toward said first bayonet means by a plurality of angularly spaced apart springs.

Claim 5

A device in accordance with claim 3 wherein said second bayonet means comprises a plurality of radially directed flanges, and said first bayonet means includes locking flanges complementally engageable with the radial flanges of said plate, said locking flanges being removably secured to said globe retainer member, said locking flanges having portions releasably to clamp said globe to said retainer member.

Claim 6

A device in accordance with claim 4 in which each of said radially directed flanges is arcuate having an upwardly inclined lip at one end defining a guide cam and each of said locking flanges is also arcuate having a downwardly directed lip at one end defining an entrance lip designed to move beneath said guide lip upon relative rotation of said radially directed flanges and said locking flanges.

Claim 7

A device in accordance with claim 4 in which each of said radially directed flanges is arcuate having an upwardly inclined lip at one end defining a guide cam and each of said locking flanges is also arcuate having a downwardly directed lip at one end defining an entrance lip designed to move beneath said guide lip upon relative rotation of said radially directed flanges and said locking flanges, said first and second bayonet flanges including complemental detent means disposed in nested position in the engaged position of said flanges for restraining relative rotation of said members.

Claim 8

A device in accordance with claim 4 in which each of said radially directed flanges is arcuate having an upwardly inclined lip at one end defining a guide cam and each of said locking flanges is also arcuate having a downwardly directed lip at one end defining an entrance lip designed to move beneath the guide lip upon relative rotation of said radially directed flanges and said locking flanges, each of said locking flanges at the end thereof remote from the downwardly inclined lip having an upstanding lip defining a stop member aDapted to abut against the upwardly extending lip of said radially directed flanges to prevent relative rotation of said members when said complemental detent means are in nested position.

Claim 9

A device in accordance with claim 4 including a yieldable gasket separating said globe from said retainer member and said locking flanges, the force required to shift said globe retainer member relative to said base member being less than the force required to compress said gasket, whereby relative movement between said globe and base member under wind, vibration and impact conditions is accommodated by relative movement between said globe retainer and base member.

Claim 10

An outdoor lighting fixture having a high resistance to damage when subjected to high wind and impact factors, comprising a mounting base member, a globe retainer member, complemental rotary guide means on said members for aligning same for relative rotary movement in a predetermined plane, a plurality of angularly spaced-apart, coplanar support shoulders extending from said base member, a floating plate, spring means yieldingly urging said plate against said shoulders, a first series of bayonet flanges on said plate, a second series of bayonet flanges removably secured to said globe retainer member, a globe, means on said second series of bayonet flanges clampingly to connect said globe to said retainer member, said first and second series of bayonet flanges being shiftable into relative interlocked and releasing positions responsive to relative rotary movements of said base member and retainer member in said plane, said floating plate in said interlocked position of said flanges, being movable clear of said shoulders yieldingly to bias said base and retainer members against each other, said members being movable relative to each other in directions normal to said plane.

Claim 11

An outdoor lighting fixture having a high resistance to damage when subjected to high wind and impact factors, comprising a mounting base member, a globe retainer member, complemental rotary guide means on said members for aligning same for relative rotary movement in a predetermined plane, a plurality of angularly spaced-apart, coplanar support shoulders extending from said base member, a floating plate, spring means yieldingly urging said plate against said shoulders, a first series of bayonet flanges on said plate, a second series of bayonet flanges removably secured to said globe retainer member, a globe, means on said second series of bayonet flanges clampingly to connect said globe to said retainer member, said first and second series of bayonet flanges being shiftable into relative interlocked and releasing positions responsive to relative rotary movements of said base member and retainer member in said plane, said floating plate in said interlocked position of said flanges, being movable clear of said shoulders yieldingly to bias said base and retainer members against each other, said members being movable relative to each other in directions normal to said plane.

Claim 12

A device in accordance with claim 9 in which said mounting base member comprises a circular plate having an axial hub rising from the inner surface thereof, said hub having an axial socket to receive a mounting member, a plurality of circumferentially spaced threaded openings extending through said hub, and a locking screw in each of said threaded openings adapted to coact with the end of said mounting member in said socket to lock the latter in position.

Claim 13

A device in accordance with claim 9 in which said mounting base member comprises a circular plate having an outwardly extending peripheral rim, said globe retainer member comprising an annulus having an annular recess in its inner periphery of diameter just slightly greater than the outer diameter of said peripheral rim and defining an annular shoulder, said peripheral rim, said annular shoulder and adjacent peripheral surfaces of said rim and said recess defining said complementary rotary guide means.

Claim 14

A device in accordance with claim 9 in which said mounting base member comprises a circular plate having an axial hub rising from the inner surface thereof, an electric lamp socket secured to the inner end of said axial hub and axially aligned therewith, said hub having an axial passageway therethrough, means being provided to space at least a portion of the adjacent ends of said socket and said hub.

Claim 15

A device in accordance with claim 9 in which said hub is of reduced diameter at its inner end defining a mounting portion at the root end of said reduced diameter portion, a sleeve is secured at one end to said mounting portion and extends coaxially with said socket encompassing the latter, coacting clamp members secured to the free end of said sleeve and a diffuser member secured at one end by said clamp members to said sleeve and extending outwardly therefrom.

Claim 16

A device in accordance with claim 9 in which a plurality of circumferentially spaced studs extend upwardly from the inner surface of said mounting base member, each of said studs being of reduced diameter at its free end defining an annular support shoulder, said floating plate comprising an annulus having circuMferentially spaced apertures through which the reduced diameter ends of said studs extend, said spring means being secured to the outer ends of said studs to react against said annulus, said first series of bayonet flanges comprising arcuate strips extending outwardly from the periphery of said annulus, said second series of bayonet flanges also comprising a plurality of arcuate strips, the arcuate spacing between the first series of bayonet flanges on said annulus being greater than the length of each of the second series of bayonet flanges.