US3591941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light fixture
Assignee: Perfeclite Inc
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Filing: 1968-01-26
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Granted: 1971-07-13
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Expires: 1988-01-26
Abstract
Abstract A light fixture and especially a light fixture of the type comprising an exit-indicating light, a restroom-indicating light or the like, and comprising a housing having an open end, and adapted for mounting on a supporting surface. The fixture has panel means with indicia thereon such as the words ''''Exit'''' or ''''Restroom'''' or the like, with the housing having a removable powerpack, either a fluorescent powerpack or incandescent powerpack, slidably supported on rails in the housing, for illuminating the housing and panel means. The powerpack has an end cover secured thereto which closes the open end of the housing when the powerpack is disposed in operative position in the housing. When the powerpack is in operative position in the housing, an electric plug on the powerpack coacts with an electric socket mounted in the housing, for connecting the powerpack to a source of current. Replacement of the powerpack or components thereof can be readily made by merely grasping the end cover on the powerpack and sliding the powerpack from the housing.
Inventors
- 👤 Joseph L Jaffe Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:23
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0011; G02B6/0081; G02B6/0086; G02B6/0091; F; F21; F21V; F21V23/00; G02B6/0075; G02B6/0076; F21Y; F21Y2103/00; G09; G09F; G09F13/00; G09F13/18; G09F2013/1804; G09F2013/1831
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
333 words
In a light fixture comprising a generally elongated housing adapted for mounting on a supporting surface said housing having at least one open end and including laterally spaced sidewalls, means on said housing depending therefrom for designating a facility and adapted to be illuminated, electrical powerpack means mounted in said housing and adapted when in operative position for illuminating said facility-designating means, an electrical energy transmitting coupling means on said powerpack means, another electrical energy transmitting coupling means mounted in the interior of said housing, said other coupling means being adapted for connection to a source of electrical energy, said coupling means adapted for automatic coupling with one another in the operative position of said powerpack means in said housing for connecting said powerpack means to the source of electrical energy, guide means in said housing on said sidewalls thereof extending lengthwise thereof, other elongated guide means on said powerpack means projecting generally laterally from the latter and coacting with said guide means in said housing for guiding lengthwise movement of said powerpack means into said housing to said operative position, and for causing accurate mating engagement of said coupling means on said powerpack means with said coupling means on said housing upon movement of said powerpack means to said operative position in said housing, said guide means on said powerpack means and said guide means in said housing extending for substantially the full interior lengthwise extent of said housing, cover means secured in nonmovable relation to one end of said powerpack means and closing said open end of said housing in said operative position of said powerpack means in said housing, and means on said cover means frictionally coacting with said open end of said housing for removably latching said powerpack means to said housing yet providing for ready linear withdrawal movement of said powerpack means and attached cover means from said housing upon outward sliding of said guide means on said powerpack means relative to said guide means in said housing.
Claim 2
Dependent Claim
333 words
In a light fixture comprising a generally elongated housing adapted for mounting on a supporting surface said housing having at least one open end and including laterally spaced sidewalls, means on said housing depending therefrom for designating a facility and adapted to be illuminated, electrical powerpack means mounted in said housing and adapted when in operative position for illuminating said facility-designating means, an electrical energy transmitting coupling means on said powerpack means, another electrical energy transmitting coupling means mounted in the interior of said housing, said other coupling means being adapted for connection to a source of electrical energy, said coupling means adapted for automatic coupling with one another in the operative position of said powerpack means in said housing for connecting said powerpack means to the source of electrical energy, guide means in said housing on said sidewalls thereof extending lengthwise thereof, other elongated guide means on said powerpack means projecting generally laterally from the latter and coacting with said guide means in said housing for guiding lengthwise movement of said powerpack means into said housing to said operative position, and for causing accurate mating engagement of said coupling means on said powerpack means with said coupling means on said housing upon movement of said powerpack means to said operative position in said housing, said guide means on said powerpack means and said guide means in said housing extending for substantially the full interior lengthwise extent of said housing, cover means secured in nonmovable relation to one end of said powerpack means and closing said open end of said housing in said operative position of said powerpack means in said housing, and means on said cover means frictionally coacting with said open end of said housing for removably latching said powerpack means to said housing yet providing for ready linear withdrawal movement of said powerpack means and attached cover means from said housing upon outward sliding of said guide means on said powerpack means relative to said guide means in said housing.
Claim 3
Dependent Claim
109 words
A light fixture in accordance with claim 1 wherein said means on said cover means coacting with the open end of said housing for latching the powerpack means to the housing comprises peripheral flanges on said cover means which encompass the outer open end of the housing in snug-fitting relation when the powerpack means is disposed in operative position in the housing, to frictionally couple the cover means to said one end of the housing, and providing a relatively slight resistance to horizontal movement of the powerpack means from the housing, said electrical energy transmitting coupling means being disposed laterally of the lengthwise horizontal center plane of said housing.
Claim 4
Dependent Claim
177 words
A light fixture in accordance with claim 2 wherein at least one of said sidewalls includes a plurality of openings with directional indicium appearing in each opening, said directional indicium being disposed on a slide member mounted in said housing in confronting relation to said openings, other directional indicium disposed on said slide member for selectively changing the indicia appearing in said openings upon movement of said member lengthwise of said housing, said guide means in said housing on each of said sidewalls thereof comprising vertically spaced flanges defining a track, said guide means on said powerpack means comprising laterally extending wings received in a respective of said tracks between the flanges thereof for maintaining said electrical energy transmitting coupling means on said powerpack means in aligned relation with said other electrical energy transmitting coupling means during movement of said powerpack means to said operative position, said powerpack means extending for substantially the full interior lengthwise extent of said housing, and means on the other end of said housing for mounting the same on a wall surface.
Claim 5
Dependent Claim
73 words
A light fixture in accordance with claim 1 wherein said housing includes a bottom wall connecting said sidewalls, said facility-designating means includes panel means supported on saiD bottom wall of said housing in depending relation with respect thereto and in downward vertically spaced relation to said power pack means, said panel means having laterally extending means thereon coacting with said bottom wall of said housing for supporting said panel means on said housing.
Claim 6
Dependent Claim
83 words
A light fixture in accordance with claim 4 wherein said laterally extending means on said panel means comprises lengthwise spaced lugs on said panel means coacting with lengthwise extending track means on said bottom wall of said housing whereby said panel means is removable from said housing by outward substantially linear sliding of said panel means relative to said housing in the direction of said one end of said housing after removal of said powerpack means and attached cover means from said housing.
Claim 7
Dependent Claim
84 words
A light fixture in accordance with claim 5 wherein said housing includes a top wall connected to said sidewalls, said other electrical energy transmitting coupling means being mounted on said top wall adjacent the other end of said housing, said electrical energy transmitting coupling means on said powerpack means being mounted adjacent the inner end of said powerpack means on the upper side thereof for coaction with said other electrical energy transmitting means when said powerpack means is in operative position in said housing.
Claim 8
Dependent Claim
23 words
A light fixture in accordance with claim 6 wherein said powerpack means include fluorescent lamps for illuminating said housing and said facility-designating means.
Claim 9
Dependent Claim
24 words
A light fixture in accordance with claim 6 wherein said powerpack means includes incandescent lamps for illuminating said housing and said facility designating means.
Claim 10
Dependent Claim
68 words
A light fixture in accordance with claim 6 wherein said housing comprises an extruded member said other end of said housing being closed, said bottom wall including an elongated slot extending lengthwise thereof and receiving therein said panel means indicia on said panel means, certain of said panel means being generally transparent for passage of light therethrough from the interior of said housing for illuminating said panel means.
Claim 11
Dependent Claim
84 words
A light fixture in accordance with claim 6 wherein said powerpack means includes a cover plate on one end thereof enclosing said open end of said housing when said powerpack means is disposed in operative position in said housing, said cover plate forming said cover means and having exteriorly accessible means adapted for grasping by a workman for causing sliding of said powerpack means out of the open end of said housing upon withdrawal movement of said cover plate laterally away from said housing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |