US4228487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite lamp assembly with detachable clamping means
Assignee: STAFF KG
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Filing: 1978-06-07
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Granted: 1980-10-14
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Expires: 1998-06-07
Abstract
Abstract A composite lamp assembly, especially for outdoor use, including a plurality of lighting fixtures individually supported by composite arms extending at angles other than 90 degrees from a central mast, with a novel ring-shaped clamping assembly detachably joining adjacent connecting sections to form the arms, and the clamping assembly including aligning surfaces ensuring proper rotational positioning of adjacent connecting sections.
Inventors
- 👤 Kurt Hesse
- 👤 Hartmut S. Engel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:21
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/10; F21V21/12
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
172 words
A composite lamp assembly providing artificial illumination, and comprising: a central mast having at least one composite arm extending from said mast, with said composite arm supporting at least one light fixture attached thereto; said composite arm comprising a plurality of substantially similarly-shaped connecting sections having end portions adjacently positioned to one another, wherein each end portion is substantially circumferential cross-sectional configuration with inner and outer surfaces facing in opposite radial directions from one another; detachable clamping means for joining said adjacently positioned end portions to form said composite arm; wherein said detachable clamping means comprises a substantially ring-shaped clamping unit circumferentially overlapping radially outer surfaces of said adjacently positioned end portions, at least one wedging member engaging radially inner surfaces of said adjacently positioned end portions, and a tensioning screw extending between and threadedly engaging said clamping ring and said wedging member, whereby selective rotation of said tensioning screw operates to draw said clamping unit and said wedging member toward one another and into clamping engagement with adjacently positioned end surfaces.
Claim 2
Dependent Claim
172 words
A composite lamp assembly providing artificial illumination, and comprising: a central mast having at least one composite arm extending from said mast, with said composite arm supporting at least one light fixture attached thereto; said composite arm comprising a plurality of substantially similarly-shaped connecting sections having end portions adjacently positioned to one another, wherein each end portion is substantially circumferential cross-sectional configuration with inner and outer surfaces facing in opposite radial directions from one another; detachable clamping means for joining said adjacently positioned end portions to form said composite arm; wherein said detachable clamping means comprises a substantially ring-shaped clamping unit circumferentially overlapping radially outer surfaces of said adjacently positioned end portions, at least one wedging member engaging radially inner surfaces of said adjacently positioned end portions, and a tensioning screw extending between and threadedly engaging said clamping ring and said wedging member, whereby selective rotation of said tensioning screw operates to draw said clamping unit and said wedging member toward one another and into clamping engagement with adjacently positioned end surfaces.
Claim 3
Dependent Claim
24 words
A composite lamp assembly according to claim 1, wherein said central mast assembly comprises a substantially cylindrically-shaped, hollow-member fixedly attached to a support assembly.
Claim 4
Dependent Claim
26 words
A composite lamp assembly according to claim 1, wherein a plurality of said composite arms each extends in a non-perpendicular direction from said central mast assembly.
Claim 5
Dependent Claim
43 words
A composite lamp assembly according to claim 3, wherein at least one attachment including a plurality of spaced terminals is fastened to said central mast assembly, with a separate composite arm engaging and extending from each separate terminal formed in said attachment assembly.
Claim 6
Dependent Claim
33 words
A composite lamp assembly according to claim 4, wherein a mast addition engages and extends beyond said attachment assembly in a direction substantially coinciding with a longitudinal axis of said central mast assembly.
Claim 7
Dependent Claim
37 words
A composite lamp assembly according to claim 5, wherein at least one composite arm assembly engages and extends outwardly from said mast addition, with said one composite arm assembly supporting at least one light fixture attached thereto.
Claim 8
Dependent Claim
33 words
A composite lamp assembly according to claim 1, wherein said wedging member is formed with a substantially talon-shaped configuration and each of said connecting sections is formed with a circumferentially extending outer surface.
Claim 9
Dependent Claim
40 words
A composite lamp assembly according to claim 1, wherein a pair of wedging members each engage radially inner surfaces of said adjacently positioned end portions with a separate tensioning screw extending between each wedging member and said ring-shaped clamping unit.
Claim 10
Dependent Claim
19 words
A composite lamp assembly according to claim 8, wherein each wedging member is formed with a substantially talon-shaped configuration.
Claim 11
Dependent Claim
53 words
A composite lamp according to claim 7, wherein each of said end portions of said adjacently positioned connecting sections includes a radially, inwardly extending flange formed with an inclined surface; and said talon-shaped wedging member includes a pair of inclined lobes for clamping against the inclined surface of said adjacently positioned end portions.
Claim 12
Dependent Claim
36 words
A composite lamp according to claim 10, wherein said inclined surface of said end portions are each inclined at a steeper angle than the lobes of said talon-shaped wedging member to ensure positive, clamping contact therebetween.
Claim 13
Dependent Claim
42 words
A composite lamp assembly according to claim 7, wherein said ring-shaped clamping unit includes an outer circumferential surface which is positioned in a plane including outer circumferential surfaces of said connecting sections to provide a continuous outer surface for said composite arm.
Claim 14
Dependent Claim
46 words
A composite lamp assembly according to claim 7, wherein said ring-shaped clamping unit includes a flat surface portion and each of said adjacently positioned connecting sections includes a similarly-shaped, flat surface portion for providing alignment with said clamping unit, while preventing rotation of said composite arm.
Claim 15
Dependent Claim
42 words
A composite lamp assembly according to claim 13, wherein said clamping unit and said connecting sections each have a plurality of confronting flat surface portions spaced at substantially 90 degrees intervals from one another about the circumference of said composite arm assembly.
Claim 16
Dependent Claim
68 words
A composite lamp assembly according to claim 8, wherein a plurality of ribs are positioned within said circumferentially extending end surfaces of said adjacently positioned end portions, said internal ribs form a grid wherein a pair of ribs extend on opposite sides of each talon-shaped wedging member to prevent rotation of said wedging member and to maintain said wedging member in proper position relative to said clamping unit.
Claim 17
Dependent Claim
128 words
A composite lamp assembly capable of providing artificial illumination, and comprising: a central mast assembly and at least one composite arm assembly having a light fixture attached thereto, said central mast assembly including a circumferentially extending terminal portion adjacently positioned to an end portion of said composite arm assembly; detachable clamping assembly including a ring-shaped clamping unit surrounding said adjacently positioned terminal portion and said end portion, at least one wedging member engaging radial inner surfaces of said terminal portion and said end portion and tensioning means extending between said clamping unit and said wedging member for drawing said clamping unit and said wedging member into clamping engagement with said terminal portion and said end portion to rigidly attach said composite arm assembly to said central mast assembly.
Claim 18
Dependent Claim
128 words
A composite lamp assembly capable of providing artificial illumination, and comprising: a central mast assembly and at least one composite arm assembly having a light fixture attached thereto, said central mast assembly including a circumferentially extending terminal portion adjacently positioned to an end portion of said composite arm assembly; detachable clamping assembly including a ring-shaped clamping unit surrounding said adjacently positioned terminal portion and said end portion, at least one wedging member engaging radial inner surfaces of said terminal portion and said end portion and tensioning means extending between said clamping unit and said wedging member for drawing said clamping unit and said wedging member into clamping engagement with said terminal portion and said end portion to rigidly attach said composite arm assembly to said central mast assembly.
Claim 19
Dependent Claim
18 words
A composite lamp assembly according to claim 16, wherein said wedging member is formed with a talon-shaped configuration.
Claim 20
Dependent Claim
44 words
A composite lamp assembly according to claim 17, wherein a plurality of talon-shaped wedging members each engage radial inner surfaces of said adjacently positioned terminal portion and end configuration, with separate tensioning means extending between each talon-shaped wedging member and said ring-shaped clamping unit.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-14 | 1984-04-14 | 1984-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-14 | 1988-04-14 | 1988-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-14 | 1992-04-14 | 1992-10-14 | $7700.00 | Window Closed / Lapsed |