Emergency warning lamp

Claim 2

In an emergency warning lamp, the combination comprising a base, an electric motor mounted on said base, said motor having a shaft projecting therefrom, a lamp and reflector assembly, means for mounting said lamp and reflector assembly on said shaft such that there is an electrical connection to said shaft, a lens on said base surrounding said lamp and reflector assembly, said lens and base having complementary annular contacting surfaces, interengaging means between said lens and said base comprising slot and flange means, and an upstanding annular wall extending from said base within said lens to provide a water wall such that liquid cannot move transversely between said lens and said base into said lens.

Claim 3

The combination set forth in claim 1 including drain openings in said base permitting liquid such as water to be drained from said base in the event it passes between said lens and said base toward said annular wall.

Claim 4

The combination set forth in claim 2 wherein said interengaging means between said base and said lens comprises circumferentially spaced slots in said base, said lens having downwardly and outwardly extending hook members engaging said slots, said slots having a wide portion to permit axial movement of the hook members downwardly onto said base, and a narrow, circumferential and transverse portion to permit the outwardly extending portion of said hook portions to move upon rotation of said lens with respect to said base beneath said transverse wall of said base.

Claim 5

The combination set forth in claim 3 including releasable means extending between said flange on said lens and said base for locking said lens on said base.

Claim 6

In an emergency warning lamp, the combination comprising a base, an electric motor mounted on said base, said motor having a shaft projecting therefrom, said motor shaft being electrically connected to said motor casing, a lamp and reflector assembly, means for electrically and mechanically mounting said lamp and reflector assembly on said shaft such that there is an electrical connection to said shaft, an electrical contact plate on said base insulated from said shaft, and brush means electrically insulated from and mounted on said shaft for rotation therewith such that an electrical circuit may be completed from said shaft to said lamp and through said brush means to said contact member, said electrical motor including a stator, electrical leads to said stator, one of said leads extending to the motor casing for providing an electrical connection therethrough to the shaft, the other of said leads extending to said contact member, said contact plate being substantially flat and extends transversely to and surrounds the shaft.

Claim 7

In an emergency warning lamp, the combination comprising a base, an electric motor mounted on said base, said motor having a shaft projecting therefrom, said motor shaft being electrically connected to said motor casing, a lamp and reflector assembly, means for electrically and mechanically mounting said lamp and reflector assembly on said shaft such that there is an electrical connection to said shaft, an electrical contact plate on said base insulated from said shaft, and brush means electrically insulated from and mounted on said shaft for rotation therewith such that an electrical circuit may be completed from said shaft to said lamp and through said brush means to said contact member, said electrical motor including a stator, electrical leads to said stator, one of said leads extending to the motor casing for providing an electrical connection therethrough to the shaft, the other of said leads extending to said contact member, said contact plate being substantially flat and extends transversely to and surrounds the shaft.

Claim 8

The combination set forth in claim 5 wherein said brush means includes a brush yieldingly urged in a direction parallel to the axis of said shaft into contact with said contact plate.

Claim 9

The combination set forth in claim 6 wherein said brush is mounted for limited resilient movement transversely with respect to said shaft.

Claim 10

In an emergency warning lamp or the like, the combination comprising a base, a lens on said base surrounding said lamp and reflector assembly, said lens and base having complementary annular contacting surfaces, interengaging means between said lens and said base comprising slot and flange means, and an upstanding annular wall extending from said base within said lens to provide a water wall such that liquid cannot move transversely between said lens and said base into said lens.

Claim 11

In an emergency warning lamp or the like, the combination comprising a base, a lens on said base surrounding said lamp and reflector assembly, said lens and base having complementary annular contacting surfaces, interengaging means between said lens and said base comprising slot and flange means, and an upstanding annular wall extending from said base within said lens to provide a water wall such that liquid cannot move transversely between said lens and said base into said lens.

Claim 12

The combination set forth in claim 8 including drain openings in said base permitting liquid such as water to be drained from said base in the event it passes between said lens and said base toward said annular wall.

Claim 13

The combination set forth in claim 9 wherein said interengaging means between said base and said lens comprises circumferentially spaced slots in said base, said lens having downwardly and outwardly extending hook members engaging said slots, said slots having a wide portion to permit axial movement of the hook members downwardly onto said base, and a narrow, circumferential and transverse portion to permit the outwardly extending portion of said hook members to move upon rotation of said lens with respect to said base beneath said transverse wall of said base.

Claim 14

The combination set forth in claim 10 including releasable means extending between said flange on said lens and said base for locking said lens on said base.

Claim 15

In an emergemcy warning lamp, the combination comprising a base, an electric motor mounted on said base, said motor having a shaft projecting therefrom, said motor shaft being electrically connected to said motor casing, a lamp and reflector assembly, means for electrically and mechanically mounting said lamp and reflector assembly on said shaft such that there is an electrical connection to said shaft, an electrical contact plate on said base insulated from said shaFt, and brush means electrically insulated from and mounted on said shaft for rotation therewith such that an electrical circuit may be completed from said shaft to said lamp and through said brush means to said contact member, said electrical motor including a stator, electrical leads to said stator, one of said leads extending to the motor casing for providing an electrical connection therethrough to the shaft, the other of said leads extending to said brush.

Claim 16

In an emergemcy warning lamp, the combination comprising a base, an electric motor mounted on said base, said motor having a shaft projecting therefrom, said motor shaft being electrically connected to said motor casing, a lamp and reflector assembly, means for electrically and mechanically mounting said lamp and reflector assembly on said shaft such that there is an electrical connection to said shaft, an electrical contact plate on said base insulated from said shaFt, and brush means electrically insulated from and mounted on said shaft for rotation therewith such that an electrical circuit may be completed from said shaft to said lamp and through said brush means to said contact member, said electrical motor including a stator, electrical leads to said stator, one of said leads extending to the motor casing for providing an electrical connection therethrough to the shaft, the other of said leads extending to said brush.