US3767912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floodlight having quick release support for lamp envelope
Assignee: Phoenix Products Co Inc
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Filing: 1972-07-31
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Granted: 1973-10-23
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Expires: 1992-07-31
Abstract
Abstract A floodlight fixture has a cup-shaped housing in which a lamp is enclosed with the maximum diameter portion of its glass envelope axially clamped between fixed and movable steadying rings. The movable ring has a hinged connection with the fixed one, to swing to a lamp releasing position, and is quickly releasably latched in its lamp engaging position. The latch and the hinge connection are arranged to bias the movable ring axially toward the fixed one. Hinge connection bias cooperates with fingers on the movable ring to detentwise hold it in its lamp releasing position.
Inventors
- 👤 K Faux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:32
CPC Classifications
F; F21; F21V; F21V19/00; F21V19/04; F21S; F21S8/00; F21V21/00; F21V21/14; F21V21/30
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
481 words
A housing for a lamp of the type that comprises an envelope enclosing a filament and terminal means at the rear of the envelope for connecting the filament with a source of current, the envelope having a maximum diameter portion spaced forwardly of the terminal means and having coaxial portions forwardly and rearwardly adjacent to the maximum diameter portion which respectively face towards the front and the rear of the envelope, said housing being of the type comprising a forwardly opening enclosure having socket means at its rear in which the terminal means is readily detachably receivable and having a rear ring spaced forwardly of the socket means and providing a forwardly facing seat against which said rearwardly facing portion of tHe envelope is coaxially engageable, means cooperable with said rear ring to readily releasably hold the envelope of a lamp, the last named means comprising: A. a pair of elongated hinge-pin carriers axially slidably extending through said rear ring at circumferentially spaced locations along a line which is wholly located radially outwardly of the inside diameter of the rear ring; B. spring means reacting between the carriers and the rear ring to bias the carriers rearwardly; C. a hinge pin extending through the carriers forward of the rear ring, said hinge pin being supported by the carriers for bodily back and forth motion and being biased rearwardly by said spring means; D. a front ring having an inner diameter portion that provides a seat coaxially engageable with said forwardly facing portion of a lamp envelope, said front ring also having 1. a pair of spaced apart ears through which said hinge pin extends to pivot the front ring for swinging motion between a lamp retaining position coaxially overlying the rear ring and a forwardly swung lamp releasing position in which the front ring is substantially normal to the rear ring, 2. finger means extending obliquely rearwardly and radially outwardly over the hinge pin to engage the front surface of the rear ring as the front ring is swung toward its lamp releasing position, said finger means cooperating with said spring means to provide an overcenter connection between the rings by which the front ring is detent-wise held in its lamp releasing position, and 3. a radially outwardly projecting tab portion circumferentially spaced from the hinge pin and having a radially outwardly opening slot therein; E. a shaft rotatable and axially slidable in a hole in the rear ring that is in register with said slot when the front ring is in its lamp retaining position; and F. a cross pin through said shaft, engageable over said tab at opposite sides of the slot therein to secure the front ring in its lamp retaining position and which can be aligned with the slot, upon rotation of the shaft, to free the front ring to be swung to its lamp releasing position.
Claim 2
Dependent Claim
481 words
A housing for a lamp of the type that comprises an envelope enclosing a filament and terminal means at the rear of the envelope for connecting the filament with a source of current, the envelope having a maximum diameter portion spaced forwardly of the terminal means and having coaxial portions forwardly and rearwardly adjacent to the maximum diameter portion which respectively face towards the front and the rear of the envelope, said housing being of the type comprising a forwardly opening enclosure having socket means at its rear in which the terminal means is readily detachably receivable and having a rear ring spaced forwardly of the socket means and providing a forwardly facing seat against which said rearwardly facing portion of tHe envelope is coaxially engageable, means cooperable with said rear ring to readily releasably hold the envelope of a lamp, the last named means comprising: A. a pair of elongated hinge-pin carriers axially slidably extending through said rear ring at circumferentially spaced locations along a line which is wholly located radially outwardly of the inside diameter of the rear ring; B. spring means reacting between the carriers and the rear ring to bias the carriers rearwardly; C. a hinge pin extending through the carriers forward of the rear ring, said hinge pin being supported by the carriers for bodily back and forth motion and being biased rearwardly by said spring means; D. a front ring having an inner diameter portion that provides a seat coaxially engageable with said forwardly facing portion of a lamp envelope, said front ring also having 1. a pair of spaced apart ears through which said hinge pin extends to pivot the front ring for swinging motion between a lamp retaining position coaxially overlying the rear ring and a forwardly swung lamp releasing position in which the front ring is substantially normal to the rear ring, 2. finger means extending obliquely rearwardly and radially outwardly over the hinge pin to engage the front surface of the rear ring as the front ring is swung toward its lamp releasing position, said finger means cooperating with said spring means to provide an overcenter connection between the rings by which the front ring is detent-wise held in its lamp releasing position, and 3. a radially outwardly projecting tab portion circumferentially spaced from the hinge pin and having a radially outwardly opening slot therein; E. a shaft rotatable and axially slidable in a hole in the rear ring that is in register with said slot when the front ring is in its lamp retaining position; and F. a cross pin through said shaft, engageable over said tab at opposite sides of the slot therein to secure the front ring in its lamp retaining position and which can be aligned with the slot, upon rotation of the shaft, to free the front ring to be swung to its lamp releasing position.
Claim 3
Dependent Claim
62 words
finger means extending obliquely rearwardly and radially outwardly over the hinge pin to engage the front surface of the rear ring as the front ring is swung toward its lamp releasing position, said finger means cooperating with said spring means to provide an overcenter connection between the rings by which the front ring is detent-wise held in its lamp releasing position, and
Claim 4
Dependent Claim
62 words
finger means extending obliquely rearwardly and radially outwardly over the hinge pin to engage the front surface of the rear ring as the front ring is swung toward its lamp releasing position, said finger means cooperating with said spring means to provide an overcenter connection between the rings by which the front ring is detent-wise held in its lamp releasing position, and
Claim 5
Dependent Claim
26 words
The lamp housing of claim 1, further characterized by: G. other spring means reacting between said rear ring and the shaft to bias the latter rearwardly.
Claim 6
Dependent Claim
106 words
a radially outwardly projecting tab portion circumferentially spaced from the hinge pin and having a radially outwardly opening slot therein; E. a shaft rotatable and axially slidable in a hole in the rear ring that is in register with said slot when the front ring is in its lamp retaining position; and F. a cross pin through said shaft, engageable over said tab at opposite sides of the slot therein to secure the front ring in its lamp retaining position and which can be aligned with the slot, upon rotation of the shaft, to free the front ring to be swung to its lamp releasing position.
Claim 7
Dependent Claim
106 words
a radially outwardly projecting tab portion circumferentially spaced from the hinge pin and having a radially outwardly opening slot therein; E. a shaft rotatable and axially slidable in a hole in the rear ring that is in register with said slot when the front ring is in its lamp retaining position; and F. a cross pin through said shaft, engageable over said tab at opposite sides of the slot therein to secure the front ring in its lamp retaining position and which can be aligned with the slot, upon rotation of the shaft, to free the front ring to be swung to its lamp releasing position.
Claim 8
Dependent Claim
57 words
The lamp housing of claim 2, further characterized by: H. the first mentioned spring means comprising a coiled spring surrounding each of said carriers and bearing against an enlarged head on the rear thereof; and I. said other spring means comprising a coiled spring surrounding said shaft and bearing against an enlarged head on the rear thereof.
Claim 9
Dependent Claim
25 words
The lamp housing of claim 1, further characterized by: J. a T-handle on said shaft, spaced forwardly of the cross-pin and extending substantially parallel thereto.
Claim 10
Dependent Claim
457 words
Supporting means for a lamp envelope in which a filament is enclosed and which has a maximum diameter portion and coaxial portions adjacent thereto that face generally in opposite directions, said supporting means comprising: A. a relatively fixed ring having an inside diameter portion that provides a seat engageable with one of said coaxial portions of a lamp envelope; B. a pair of elongated hinge pin carriers which are mounted on the fixed ring with their axes substantially parallel to the axis of the fixed ring, said hinge pin carriers being axially movable relative to the fixed ring, being spaced apart circumferentially around the fixed ring, and having their axes intersecting a line that lies wholly outside the inside diameter of the fixed ring; C. a hinge pin conjointly carried by said carriers, overlying one surface of the fixed ring and movable with said carriers toward and away from said one surface; D. spring means reacting between said carriers and the opposite surface of the fixed ring to urge the hinge pin bodily toward the fixed ring; E. a movAble ring having an inner diameter portion that provides a seat coaxially engageable with the other of said coaxial portions of a lamp envelope, said movable ring also having apertured ears cooperating with said hinge pin to provide a hinge connection between the rings that enables the movable ring to swing between a lamp engaging position in which it coaxially overlies the fixed ring and a lamp releasing position in which the movable ring is substantially normal to the fixed ring; F. a shaft-like member extending through one of said rings in circumferentially spaced relation to the hinge connection and constrained substantially to rotation and axial movement relative to said one ring; G. cooperating means on said shaft-like member and on the other ring providing a releasable connection between them that is engageable upon rotation of said shaft-like member and by which the same is held against axial motion in the direction of flatwise separation of the rings; H. biasing means reacting between the shaft-like member and said one ring to urge the shaft-like member in its axial direction that draws the rings flatwise towards one another when said releasable connection is engaged; and I. detent means fixed on said movable ring, projecting toward the fixed ring and across the hinge pin at the side thereof remote from the center of the movable ring, said detent means being slidingly engageable, under the bias of said spring means, against the adjacent surface of the fixed ring upon swinging of the movable ring to its lamp releasing position to afford an overcenter connection between the rings by which the movable ring is detentwise releasably held in its lamp releasing position.
Claim 11
Dependent Claim
457 words
Supporting means for a lamp envelope in which a filament is enclosed and which has a maximum diameter portion and coaxial portions adjacent thereto that face generally in opposite directions, said supporting means comprising: A. a relatively fixed ring having an inside diameter portion that provides a seat engageable with one of said coaxial portions of a lamp envelope; B. a pair of elongated hinge pin carriers which are mounted on the fixed ring with their axes substantially parallel to the axis of the fixed ring, said hinge pin carriers being axially movable relative to the fixed ring, being spaced apart circumferentially around the fixed ring, and having their axes intersecting a line that lies wholly outside the inside diameter of the fixed ring; C. a hinge pin conjointly carried by said carriers, overlying one surface of the fixed ring and movable with said carriers toward and away from said one surface; D. spring means reacting between said carriers and the opposite surface of the fixed ring to urge the hinge pin bodily toward the fixed ring; E. a movAble ring having an inner diameter portion that provides a seat coaxially engageable with the other of said coaxial portions of a lamp envelope, said movable ring also having apertured ears cooperating with said hinge pin to provide a hinge connection between the rings that enables the movable ring to swing between a lamp engaging position in which it coaxially overlies the fixed ring and a lamp releasing position in which the movable ring is substantially normal to the fixed ring; F. a shaft-like member extending through one of said rings in circumferentially spaced relation to the hinge connection and constrained substantially to rotation and axial movement relative to said one ring; G. cooperating means on said shaft-like member and on the other ring providing a releasable connection between them that is engageable upon rotation of said shaft-like member and by which the same is held against axial motion in the direction of flatwise separation of the rings; H. biasing means reacting between the shaft-like member and said one ring to urge the shaft-like member in its axial direction that draws the rings flatwise towards one another when said releasable connection is engaged; and I. detent means fixed on said movable ring, projecting toward the fixed ring and across the hinge pin at the side thereof remote from the center of the movable ring, said detent means being slidingly engageable, under the bias of said spring means, against the adjacent surface of the fixed ring upon swinging of the movable ring to its lamp releasing position to afford an overcenter connection between the rings by which the movable ring is detentwise releasably held in its lamp releasing position.
Claim 12
Dependent Claim
375 words
Supporting means for a lamp envelope in which a filament is enclosed and which has a maximum diameter portion and coaxial portions adjacent thereto that face generally in opposite directions, said support means comprising: A. a relatively fixed ring having an inside diameter portion that provides a seat engageable with one of said coaxial portions of a lamp envelope; B. a movable ring having an inside diameter portion that provides a seat engageable with the other of said coaxial portions of a lamp envelope; C. cooperating means on said fixed and movable rings providing a hinged connection between them by which the movable ring can be swung between a lamp engaging position in which the rings are in substantially coaxial flatwise parallel relation and a lamp releasing position in which the movable ring is substantially normal to the fixed ring, said hinge connection means providing for limited relative movement between the rings in directions parallel to the axis of the fixed ring; D. biasing means operatively associated with said hinge connection means for yieldingly urging the hinge connection means on the movable ring in the direction toward the fixed ring; E. detent means fixed on said movable ring adjacent to said hinge connection, projecting toward the fixed ring and across the hinge pin at the side thereof remote from the center of the movable ring, said detent means being slidingly engageable, under the bias of said biasing means, against the adjacent surface of the fixed ring upon swinging of the movable ring to its lamp releasing position to afford an overcenter connection between the rings by which the movable ring is detentwise releasably held in its lamp releasing position; F. a shaft-like member axially slidable and rotatable in a hole in one of said rings that is circumferentially spaced a substantial distance from said hinge connection; G. cooperating means on said shaft-like member and on the other ring providing a releasable connection between the shaft-like member and said other ring that is engaged by rotation of the shaft-like member; and H. biasing means reacting between the shaft-like member and said one ring to urge the shaft-like member in its axial direction that draws the rings flatwise towarDs one another when said releasable connection is engaged.
Claim 13
Dependent Claim
375 words
Supporting means for a lamp envelope in which a filament is enclosed and which has a maximum diameter portion and coaxial portions adjacent thereto that face generally in opposite directions, said support means comprising: A. a relatively fixed ring having an inside diameter portion that provides a seat engageable with one of said coaxial portions of a lamp envelope; B. a movable ring having an inside diameter portion that provides a seat engageable with the other of said coaxial portions of a lamp envelope; C. cooperating means on said fixed and movable rings providing a hinged connection between them by which the movable ring can be swung between a lamp engaging position in which the rings are in substantially coaxial flatwise parallel relation and a lamp releasing position in which the movable ring is substantially normal to the fixed ring, said hinge connection means providing for limited relative movement between the rings in directions parallel to the axis of the fixed ring; D. biasing means operatively associated with said hinge connection means for yieldingly urging the hinge connection means on the movable ring in the direction toward the fixed ring; E. detent means fixed on said movable ring adjacent to said hinge connection, projecting toward the fixed ring and across the hinge pin at the side thereof remote from the center of the movable ring, said detent means being slidingly engageable, under the bias of said biasing means, against the adjacent surface of the fixed ring upon swinging of the movable ring to its lamp releasing position to afford an overcenter connection between the rings by which the movable ring is detentwise releasably held in its lamp releasing position; F. a shaft-like member axially slidable and rotatable in a hole in one of said rings that is circumferentially spaced a substantial distance from said hinge connection; G. cooperating means on said shaft-like member and on the other ring providing a releasable connection between the shaft-like member and said other ring that is engaged by rotation of the shaft-like member; and H. biasing means reacting between the shaft-like member and said one ring to urge the shaft-like member in its axial direction that draws the rings flatwise towarDs one another when said releasable connection is engaged.
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |