Underwater swimming pool illumination systems
First Claim
1. For use in underwater swimming pool illumination, an underwater lighting assembly comprising:
- a waterproof lamp enclosure formed in the lower portion of a strut which is associated with a base in a generally L-shaped assembly;
where said strut is adapted to be lowered into a swimming pool over the edge thereof, and said base is adapted to be secured to the swimming pool deck;
said waterproof lamp enclosure having a generally bowlshaped body portion adapted to receive the rear portion of a conically-shaped lamp unit, an O-ring seat formed around the outer part of said body portion and a compressible O-ring fitted in said O-ring seat, retainer means to fit over the outer part of said lamp unit, a flange formed around the outer part of said bowl-shaped body portion, and fastener means associated with said flange and said retainer means to cause the rear portion of said lamp unit to be forced against said compressible O-ring when said fastener means are tightened;
electrical wires attached to said lamp unit and passing rearwardly from said body portion, and contained within said strut;
and a low voltage battery connected to said electrical wires to provide low voltage, ripple-free direct current power to said lamp unit;
said base being adapted to be fitted to a pad and being substantially rectangular in plan and having at least two spaced-apart projections from each side thereof;
said pad having a first surface adapted to underlie at least a portion of said base, and having upstanding sides spaced from each other at a distance substantially the same as the distance between the sides of said base;
each of said upstanding sides of said pad having at least two undercuts formed therein to accommodate at least two of said projections on each side of said base, and to permit a sliding relationship between said base and said pad, the interference between said projections and the upper portion of said undercuts serving to preclude upward movement of said base away from said pad.
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Accused Products
Abstract
An underwater swimming pool illumination system includes a lighting assembly having a lamp unit installed witin its rear portion in a waterproof enclosure; and the lamp is connected to a low voltage battery. The waterproof enclosure may be at the bottom of a strut in an inverted L-shaped assembly, where the upper portion is a base which is fitted to a pad by a bayonet-type connection. The battery may be installed in the base, in which case the lighting assembly may be removed away from the pool to have the battery charged; or the battery may be remotely installed with a wire connection to the pad and lighting assembly. In either case, the installation is such that the lamp is completely electrically isolated from an alternating or ripple currents; either by physically removing the lamp from the pool for battery charging, or by a DPDT switch which either connects the battery to the lamp or to the charging circuit. Thus, in either case the battery is charged in a place remote from the swimming pool.
The waterproof lamp enclosure seals the rear portion of a seated beam lamp in a bowl-shaped body by an O-ring seal, when a retaining ring around the lamp is tightened against it. The retaining ring may be of a light diffracting material. The waterproof enclosure may also be attached to the wall of a swimming pool.
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Citations
9 Claims
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1. For use in underwater swimming pool illumination, an underwater lighting assembly comprising:
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a waterproof lamp enclosure formed in the lower portion of a strut which is associated with a base in a generally L-shaped assembly;
where said strut is adapted to be lowered into a swimming pool over the edge thereof, and said base is adapted to be secured to the swimming pool deck;said waterproof lamp enclosure having a generally bowlshaped body portion adapted to receive the rear portion of a conically-shaped lamp unit, an O-ring seat formed around the outer part of said body portion and a compressible O-ring fitted in said O-ring seat, retainer means to fit over the outer part of said lamp unit, a flange formed around the outer part of said bowl-shaped body portion, and fastener means associated with said flange and said retainer means to cause the rear portion of said lamp unit to be forced against said compressible O-ring when said fastener means are tightened; electrical wires attached to said lamp unit and passing rearwardly from said body portion, and contained within said strut; and a low voltage battery connected to said electrical wires to provide low voltage, ripple-free direct current power to said lamp unit; said base being adapted to be fitted to a pad and being substantially rectangular in plan and having at least two spaced-apart projections from each side thereof; said pad having a first surface adapted to underlie at least a portion of said base, and having upstanding sides spaced from each other at a distance substantially the same as the distance between the sides of said base;
each of said upstanding sides of said pad having at least two undercuts formed therein to accommodate at least two of said projections on each side of said base, and to permit a sliding relationship between said base and said pad, the interference between said projections and the upper portion of said undercuts serving to preclude upward movement of said base away from said pad. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification