Illumination – Light source and modifier – Laser type
Reexamination Certificate
2000-03-21
2001-08-28
Cariaso, Alan (Department: 2875)
Illumination
Light source and modifier
Laser type
C362S287000, C362S413000, C362S427000
Reexamination Certificate
active
06280056
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to a lamp having cooperative swivel connections relative to a lamp base to provide optimum maneuvering of light projection.
BACKGROUND OF THE INVENTION
Lamps are common place in households and are both decorative and functional for satisfying lighting needs. Lighting needs can be general lighting, i.e., a light source that lights a general area such as a room, or they can be for specific lighting, i.e., a light source that lights a specific area such as a display of a picture or reading material held by a person.
As an example, a living room in a home typically has arranged seating for multiple persons. Often, as between the seating places for any two people, a lamp will be provided. Typically the lamp provides general lighting that may not be satisfactory for either person to read. The lamp may in some instances be moved back and forth in an attempt to provide a more intense reading light for one or the other but such movement of the lamp is unsatisfactory.
It is accordingly an objective of the present invention to provide an adjustable lamp, i.e., one where the light can be directed at different locations and in different directions without repositioning the lamp base.
BRIEF DESCRIPTION OF THE INVENTION
In a preferred embodiment of the present invention, a lamp is provided with a cylindrical section, e.g., similar to that of a tube or pole, and a sleeve surrounds the section and can be rotated but restricted to a turn of less than
360
degrees around the section. A hollow stem is extended radially from the sleeve and an opening in the sleeve provides a passageway through the hollow stem and the sleeve. The cylindrical section has a circumferentially directed slot that extends preferably at least half way around the cylinder and up to about 300 degrees. The sleeve and stem are mounted to the cylinder and relative to the slot in a manner to provide an opening from the cylinder interior into the stem regardless of the rotative positioning of the stem within a given degree of rotation of the sleeve, e.g., 300 degrees. A bracket in the form of a stem extension is rotatably secured to the stem and a cross bore in the bracket (e.g., in the form of a secondary lateral stem extension) provides a mounting for a lamp fixture.
It will be appreciated that an electrical cord can be extended along the cylinder interior to the circumferential slot, and through the slot and into the stem, and then through the stem extensions for connection into a socket of the light fixture. It will be appreciated that the cylindrical section may be provided on a variety of lamp base configurations, an example being an upper section of a pole lamp.
The axis of the cylinder section is oriented vertically so that the stem, stem extensions and socket housing can be rotated about the vertical axis of the cylinder and in a horizontal plane, thus placing the light fixture that is extended from the L-shaped bracket at any side of the cylindrical section. The lateral stem extension rotates about the axis of the stem, e.g., through 300 degrees of rotation to thereby rotate the light fixture in a vertical plane. The fixture itself may be angularly adjustable relative to the secondary stem extension.
With the above arrangement, a single light bulb secured in the socket of the light fixture (generally referred to as a light source) can be directed as desired to enhance lighting of different seating arrangements or to emphasize various display items such as statues or paintings. A pole lamp may be provided with two or more such lighting arrangements and the top of the pole may be provided with an overhead fixed torchire lighting arrangement for general lighting of the area.
The above describes a preferred embodiment and variations thereto are contemplated. The invention will be more fully appreciated upon reference to the following detailed description having reference to the accompanying drawings.
REFERENCES:
patent: 5221141 (1993-06-01), Swanson
patent: 5404286 (1995-04-01), Bouitges
patent: 5615946 (1997-04-01), Yeh
Cvetkov Nikolai
Dolan Patrick S.
Cariaso Alan
Dolan Patrick
Harrington Robert L.
Sawhney Hargobind S.
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