US3770953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvements applied in the manufacture of lamps
Assignee: Metalarte SA
•
Filing: 1972-03-28
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Granted: 1973-11-06
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Expires: 1992-03-28
Abstract
Abstract The base and three elbowed sections of the lamp are rotatably and detachably secured together by a ring fixed inside the open end of one section and seated in an annular groove in the outer peripheral wall of a resisient crown fixed inside the adjacent open end of the next section. A luminous device with focusing lens is secured in like manner in the outer end of the last elbowed section and air vents are provided in the various sections for the circulation of air through the sections and over the transformer mounted in the base.
Inventors
- 👤 A Riera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:15
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/14; F21V21/30; F21V21/26
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
200 words
Improvements in the manufacture of lamps, characterized by a lamp made up by several cylinder shaped sections, including a base section and elbowed sections, which are rotatably joined by coupling means to the adjacent section, said coupling means comprising a ring and a crown, which are fixed respectively on the inside of one of the ends of one of the cylinder shaped sections of the lamp, and on the inside of the opening of the other cylindrical section which is adjacent and is joined with the first; the crown, in its free edge being provided with several press fingers, arranged in an annular and perpendicular manner, said press fingers having a concave groove on their outer surface, which in a conjoint manner form an annular groove interrupted by the separation which exists between each press finger, the inner peripheral edge of said ring being rotatably seated in said annular groove, the top edge of the press fingers being more prominent than the concave groove thereby forming a stop piece for the ring, whereby when a light separating traction is exerted on any of adjacent joined sections, separation will be achieved when the antagonistic action of the press fingers is surpassed.
Claim 2
Dependent Claim
200 words
Improvements in the manufacture of lamps, characterized by a lamp made up by several cylinder shaped sections, including a base section and elbowed sections, which are rotatably joined by coupling means to the adjacent section, said coupling means comprising a ring and a crown, which are fixed respectively on the inside of one of the ends of one of the cylinder shaped sections of the lamp, and on the inside of the opening of the other cylindrical section which is adjacent and is joined with the first; the crown, in its free edge being provided with several press fingers, arranged in an annular and perpendicular manner, said press fingers having a concave groove on their outer surface, which in a conjoint manner form an annular groove interrupted by the separation which exists between each press finger, the inner peripheral edge of said ring being rotatably seated in said annular groove, the top edge of the press fingers being more prominent than the concave groove thereby forming a stop piece for the ring, whereby when a light separating traction is exerted on any of adjacent joined sections, separation will be achieved when the antagonistic action of the press fingers is surpassed.
Claim 3
Dependent Claim
78 words
Improvements in the manufacture of lamps, according to claim 1, in which the ring and the crown are provided with spaced radial tailpieces on the outer edge thereof set in corresponding grooved areas on the inside part of the edge of the opening in which they are fixed, the back part of said radial tailpieces also being grooved and seated in the notches that are between the projections of the grooves of the inside walls of the openings.
Claim 4
Dependent Claim
35 words
Improvements in the manufacture of lamps, according to claim 2, in which the radial tail-pieces and the grooves on the interior walls of the openings of the sections are secured together by a joining adhesive.
Claim 5
Dependent Claim
41 words
Improvements in the manufacture of lamps, according to claim 1, in which cooperating stop means on the ring and on the crown limit the rotation of a section in relation to an adjacent section, so that it does not reach 360*.
Claim 6
Dependent Claim
59 words
Improvements in the manufacture of lamps, according to claim 1, in which when the crown of press fingers also supports an overhanging internal luminous device and a movable lens, the press fingers being of different lengths in relation to each other, so that those that protrude most act as support and fastening means for the luminous device and lens.
Claim 7
Dependent Claim
54 words
ImprovementS in the manufacture of lamps, according to claim 5, in which in the crown which supports the lens and in the walls of the different sections of the lamp structure, and in the base of the lamp there are openings for the circulation and renewal of air in the interior of the lamp.
Claim 8
Dependent Claim
33 words
Improvements in the manufacture of lamps according to claim 6, in which a transformer is mounted in the base of the lamp and extends into the interior of the adjacent cylinder shaped section.
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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |