Patent US5688041A successfully refreshed from Google Patents.
US5688041A
Expired / Lapsed
US
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Demarcation lighting system
Assignee: Georg Robel GmbH and Co
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Filing: 1995-05-22
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Granted: 1997-11-18
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Expires: 2015-05-22
Abstract
Abstract A demarcation lighting system for separating danger zones and work areas, includes a transparent lamp assembly accommodating a lamp and being made of tubular, flexible material. Each axial end of the lamp assembly is equipped with a coupling for allowing a detachable connection of a further lamp assembly.
Inventors
- 👤 Dieter Arndt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:59
CPC Classifications
F; F21; F21V; F21V23/00; F21V23/06; F21S; F21S4/00; F21S4/20; F21S4/22; F21V15/00; F21V15/01; F21V21/00; F21V21/005; F21V31/00; F21V9/00; F21V9/30; F21W; F21W2111/00; F21W2131/00; F21W2131/10
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
118 words
A demarcation lighting system for demarcating and illuminating danger zones and work areas, comprising: a transparent lamp assembly defining an axis and having opposing ends, said lamp assembly containing a lamp and being made of tubular, flexible material; coupling means secured to said lamp assembly for allowing a selective detachable connection to a further lamp assembly, said coupling means including a first coupling arranged on one end of said lamp assembly and a second coupling arranged on the other end of said lamp assembly; and a pedestal detachably secured to one of said first and second couplings and including a base extending vertically to the axis of said lamp assembly and a cable for supply of electric energy.
Claim 2
Dependent Claim
118 words
A demarcation lighting system for demarcating and illuminating danger zones and work areas, comprising: a transparent lamp assembly defining an axis and having opposing ends, said lamp assembly containing a lamp and being made of tubular, flexible material; coupling means secured to said lamp assembly for allowing a selective detachable connection to a further lamp assembly, said coupling means including a first coupling arranged on one end of said lamp assembly and a second coupling arranged on the other end of said lamp assembly; and a pedestal detachably secured to one of said first and second couplings and including a base extending vertically to the axis of said lamp assembly and a cable for supply of electric energy.
Claim 3
Dependent Claim
46 words
The lighting system of claim 1 wherein one of said first and second couplings of said lamp assembly is provided in form of a plug, and the other one of said first and second couplings of said lamp assembly is provided in form of a socket.
Claim 4
Dependent Claim
50 words
The lighting system of claim 1 wherein said lamp assembly includes a stiffening member detachably secured and extending in longitudinal direction of the lamp assembly, with at least one of said first and second couplings being detachably secured to said lamp assembly to allow a removal of said stiffening member.
Claim 5
Dependent Claim
26 words
The lighting system of claim 3 wherein one of said couplings includes a bore, said stiffening member being plugged in said bore of said one coupling.
Claim 6
Dependent Claim
22 words
The lighting system of claim 3 wherein said stiffening member has a number of lamps and is provided with a fluorescent surface.
Claim 7
Dependent Claim
27 words
The lighting system of claim 1 wherein said coupling means is provided in form of a plug-in coupling with integrated electric plug for conduction of electric energy.
Claim 8
Dependent Claim
29 words
The lighting system of claim 1, further comprising a terminal box secured to one of said first and second couplings for sealing said lamp assembly in a watertight manner.
Claim 9
Dependent Claim
40 words
The lighting system of claim 1, further comprising a pedestal secured to one of said first and second couplings and including a base extending vertically to the axis of said lamp assembly and a cable for supply of electric energy.
Claim 10
Dependent Claim
32 words
The lighting system of claim 1 wherein said lamp assembly includes an internal electric cable supporting a plurality of lamps and connected with said first and second couplings of said lamp assembly.
Claim 11
Dependent Claim
20 words
The lighting system of claim 1 wherein each of said first and second couplings is provided with a mounting element.
Claim 12
Dependent Claim
24 words
The lighting system of claim 1, further comprising a pneumatic valve secured to said lamp assembly for generating an overpressure in said lamp assembly.
Claim 13
Dependent Claim
16 words
The lighting system of claim 7, further comprising a pneumatic valve secured to said terminal box.
Claim 14
Dependent Claim
13 words
The lighting system of claim 1 wherein said lamp assembly includes fluorescent particles.
Claim 15
Dependent Claim
43 words
The lighting system of claim 1, further comprising a distance piece extending vertically to the axis of said lamp assembly and having one end secured to said pedestal and another free end formed with a clamping unit for attachment of said distance piece.
Claim 16
Dependent Claim
50 words
The lighting system of claim 14 for use at a track site having two rails fastened to ties, said distance piece having a length which corresponds to a horizontal distance, perpendicular to a longitudinal direction of the track, of a railway clearance gauge from a proximate rail of the track.
Claim 17
Dependent Claim
102 words
A demarcation lighting system for demarcating and illuminating danger zones and work areas, comprising: a transparent lamp assembly defining an axis and having opposing ends, said lamp assembly containing a lamp and being made of tubular, flexible material; and coupling means secured to said lamp assembly for allowing a selective detachable connection to a further lamp assembly, said coupling means including a first coupling arranged on one end of said lamp assembly and a second coupling arranged on the other end of said lamp assembly; and a pneumatic valve secured to said lamp assembly for generating an overpressure in said lamp assembly.
Claim 18
Dependent Claim
102 words
A demarcation lighting system for demarcating and illuminating danger zones and work areas, comprising: a transparent lamp assembly defining an axis and having opposing ends, said lamp assembly containing a lamp and being made of tubular, flexible material; and coupling means secured to said lamp assembly for allowing a selective detachable connection to a further lamp assembly, said coupling means including a first coupling arranged on one end of said lamp assembly and a second coupling arranged on the other end of said lamp assembly; and a pneumatic valve secured to said lamp assembly for generating an overpressure in said lamp assembly.
Claim 19
Dependent Claim
46 words
The lighting system of claim 16 wherein one of said first and second couplings of said lamp assembly is provided in form of a plug, and the other one of said first and second couplings of said lamp assembly is provided in form of a socket.
Claim 20
Dependent Claim
50 words
The lighting system of claim 16 wherein said lamp assembly includes a stiffening member detachably secured and extending in longitudinal direction of the lamp assembly, with at least one of said first and second couplings being detachably secured to said lamp assembly to allow a removal of said stiffening member.
Claim 21
Dependent Claim
26 words
The lighting system of claim 18 wherein one of said couplings includes a bore, said stiffening member being plugged in said bore of said one coupling.
Claim 22
Dependent Claim
22 words
The lighting system of claim 18 wherein said stiffening member has a number of lamps and is provided with a fluorescent surface.
Claim 23
Dependent Claim
27 words
The lighting system of claim 16 wherein said coupling means is provided in form of a plug-in coupling with integrated electric plug for conduction of electric energy.
Claim 24
Dependent Claim
29 words
The lighting system of claim 16, further comprising a terminal box secured to one of said first and second couplings for sealing said lamp assembly in a watertight manner.
Claim 25
Dependent Claim
32 words
The lighting system of claim 16 wherein said lamp assembly includes an internal electric cable supporting a plurality of lamps and connected with said first and second couplings of said lamp assembly.
Claim 26
Dependent Claim
20 words
The lighting system of claim 16 wherein each of said first and second couplings is provided with a mounting element.
Claim 27
Dependent Claim
16 words
The lighting system of claim 22, further comprising a pneumatic valve secured to said terminal box.
Claim 28
Dependent Claim
13 words
The lighting system of claim 16 wherein said lamp assembly includes fluorescent particles.
Claim 29
Dependent Claim
77 words
The lighting system of claim 16, further comprising a pedestal detachably secured to one of said first and second couplings and including a base extending vertically to the axis of said lamp assembly and a cable for supply of electric energy; and a distance piece extending vertically to the axis of said lamp assembly and having one end secured to said pedestal and another free end formed with a clamping unit for attachment of said distance piece.
Claim 30
Dependent Claim
50 words
The lighting system of claim 27 for use at a track site having two rails fastened to ties, said distance piece having a length which corresponds to a horizontal distance, perpendicular to a longitudinal direction of the track, of a railway clearance gauge from a proximate rail of the track.
Claim 31
Dependent Claim
115 words
A demarcation lighting system for demarcating and illuminating danger zones and work areas, comprising: a transparent lamp assembly defining an axis and having opposing ends, said lamp assembly containing a lamp and being made of tubular, flexible material; and coupling means secured to said lamp assembly for allowing a selective detachable connection to a further lamp assembly, said coupling means including a first coupling arranged on one end of said lamp assembly and a second coupling arranged on the other end of said lamp assembly; a terminal box secured to one of said first and second couplings for sealing said lamp assembly in a watertight manner; and a pneumatic valve secured to said terminal box.
Claim 32
Dependent Claim
115 words
A demarcation lighting system for demarcating and illuminating danger zones and work areas, comprising: a transparent lamp assembly defining an axis and having opposing ends, said lamp assembly containing a lamp and being made of tubular, flexible material; and coupling means secured to said lamp assembly for allowing a selective detachable connection to a further lamp assembly, said coupling means including a first coupling arranged on one end of said lamp assembly and a second coupling arranged on the other end of said lamp assembly; a terminal box secured to one of said first and second couplings for sealing said lamp assembly in a watertight manner; and a pneumatic valve secured to said terminal box.
Claim 33
Dependent Claim
46 words
The lighting system of claim 29 wherein one of said first and second couplings of said lamp assembly is provided in form of a plug, and the other one of said first and second couplings of said lamp assembly is provided in form of a socket.
Claim 34
Dependent Claim
50 words
The lighting system of claim 29 wherein said lamp assembly includes a stiffening member detachably secured and extending in longitudinal direction of the lamp assembly, with at least one of said first and second couplings being detachably secured to said lamp assembly to allow a removal of said stiffening member.
Claim 35
Dependent Claim
26 words
The lighting system of claim 31 wherein one of said couplings includes a bore, said stiffening member being plugged in said bore of said one coupling.
Claim 36
Dependent Claim
22 words
The lighting system of claim 31 wherein said stiffening member has a number of lamps and is provided with a fluorescent surface.
Claim 37
Dependent Claim
27 words
The lighting system of claim 29 wherein said coupling means is provided in form of a plug-in coupling with integrated electric plug for conduction of electric energy.
Claim 38
Dependent Claim
32 words
The lighting system of claim 29 wherein said lamp assembly includes an internal electric cable supporting a plurality of lamps and connected with said first and second couplings of said lamp assembly.
Claim 39
Dependent Claim
20 words
The lighting system of claim 29 wherein each of said first and second couplings is provided with a mounting element.
Claim 40
Dependent Claim
13 words
The lighting system of claim 29 wherein said lamp assembly includes fluorescent particles.
Claim 41
Dependent Claim
77 words
The lighting system of claim 29, further comprising a pedestal detachably secured to one of said first and second couplings and including a base extending vertically to the axis of said lamp assembly and a cable for supply of electric energy; and a distance piece extending vertically to the axis of said lamp assembly and having one end secured to said pedestal and another free end formed with a clamping unit for attachment of said distance piece.
Claim 42
Dependent Claim
50 words
The lighting system of claim 38 for use at a track site having two rails fastened to ties, said distance piece having a length which corresponds to a horizontal distance, perpendicular to a longitudinal direction of the track, of a railway clearance gauge from a proximate rail of the track.
References Cited (Backward Citations)
US4607317A
Cited
US5309658A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-11-17 | 2001-05-19 | 2001-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-17 | 2005-05-19 | 2005-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-17 | 2009-05-19 | 2009-11-18 | $7700.00 | Window Closed / Lapsed |