US4792045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent tube dunnage
Assignee: Lawrence Paper Co
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Filing: 1987-09-08
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Granted: 1988-12-20
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Expires: 2007-09-08
Abstract
Abstract Molded synthetic resin dunnage supports for packing of elongated fragile fluorescent tubes are provided which are designed for automated dispensing during packaging and give protection against tube breakage at least equivalent to that of conventional molded pulp supports. In preferred forms, the dunnage support is formed from polyvinyl chloride sheet material (0.014 inch thickness) and includes plural juxtaposed tube-receiving sockets together with a rear side lip and front side ledge platforms; the lip carries laterally spaced upright nibs which, in conjunction with the ledge platforms, prevent complete nesting of the supports, so that an interfitted support stack presents substantially even access spaces between individual supports for easy machine dispensing. The tube-receiving sockets are provided with alternating, vertically spaced, upwardly and downwardly opening arcuate, striated tube-engaging sections so that a single support can simultaneously engage and cushion a pair of tube layers in a shipping carton. The dunnage design affords a high degree of protection for the packaged tubes and can safely absorb potentially destructive impacts without tube breakage.
Inventors
- 👤 David E. Creaden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:29
CPC Classifications
B; B65; B65D; B65D71/00; B65D71/70; B65D1/00; B65D1/34; B65D1/36; B65D85/00; B65D85/30; B65D85/42
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
120 words
A fluorescent tube support comprising: an integral body formed from thin synthetic resin sheet material, said body having generally concavo-convex walls presenting a number of elongated, open-top, parallel, juxtaposed concave tube-receiving regions with corresponding convex underside wall surfaces and elongated, axially extending top walls between adjacent tube-receiving regions, each of said generally concavo-convex walls including a wall section for engaging a fluorescent tube disposed immediately below the corresponding tube-receiving region, the thickness of said top walls being greater than the thickness of said wall sections; and spacer means carried by said tube support for preventing complete nesting of plural supports and to define substantially uniform, elongated, laterally extending spaces between adjacent interfitted supports for insertion of automatic dispensing equipment therebetween.
Claim 2
Dependent Claim
120 words
A fluorescent tube support comprising: an integral body formed from thin synthetic resin sheet material, said body having generally concavo-convex walls presenting a number of elongated, open-top, parallel, juxtaposed concave tube-receiving regions with corresponding convex underside wall surfaces and elongated, axially extending top walls between adjacent tube-receiving regions, each of said generally concavo-convex walls including a wall section for engaging a fluorescent tube disposed immediately below the corresponding tube-receiving region, the thickness of said top walls being greater than the thickness of said wall sections; and spacer means carried by said tube support for preventing complete nesting of plural supports and to define substantially uniform, elongated, laterally extending spaces between adjacent interfitted supports for insertion of automatic dispensing equipment therebetween.
Claim 3
Dependent Claim
49 words
The tube support of claim 1, said spacer means comprising an elongated, rearwardly extending rear side lip having an underside presenting an abutment surface, and a plurality of upstanding, laterally spaced apart nibs carried by said lip, said nibs having a vertical height of at least about 1/8 inch.
Claim 4
Dependent Claim
38 words
The tube support of claim 1, said spacer means including structure presenting a plurality of laterally spaced apart ledge platforms oriented along the front side edge of the support and positioned for preventing complete nesting of plural supports.
Claim 5
Dependent Claim
22 words
The tube support of claim 1, said sheet material having a thickness prior to forming of from about 0.013 to 0.018 inch.
Claim 6
Dependent Claim
12 words
The tube support of claim 1, said sheet material being polyvinyl chloride.
Claim 7
Dependent Claim
145 words
A fluorescent tube support, comprising: an integral body formed from thin synthetic resin sheet material, said body having generally concavo-convex walls presenting a number of elongated, open-top, parallel, juxtaposed concave tube-receiving regions and corresponding convex underside wall surfaces, said concavo-convex walls each including respective, alternating wall surfaces for simultaneously engaging one fluorescent tube received within the corresponding region, and another fluorescent tube immediately below said one tube and received within a region of another of said supports, there being an elongated, uninterrupted, downwardly open space between the lower extents of adjacent convex underside wall surfaces and defined by the latter; and spacer means carried by said tube support for preventing complete nesting of plural supports and to define substantially uniform, elongated, laterally extending spaces having a vertical height of at least about 1/8 inch between adjacent interfitted supports for insertion of automatic dispensing equipment therebetween.
Claim 8
Dependent Claim
145 words
A fluorescent tube support, comprising: an integral body formed from thin synthetic resin sheet material, said body having generally concavo-convex walls presenting a number of elongated, open-top, parallel, juxtaposed concave tube-receiving regions and corresponding convex underside wall surfaces, said concavo-convex walls each including respective, alternating wall surfaces for simultaneously engaging one fluorescent tube received within the corresponding region, and another fluorescent tube immediately below said one tube and received within a region of another of said supports, there being an elongated, uninterrupted, downwardly open space between the lower extents of adjacent convex underside wall surfaces and defined by the latter; and spacer means carried by said tube support for preventing complete nesting of plural supports and to define substantially uniform, elongated, laterally extending spaces having a vertical height of at least about 1/8 inch between adjacent interfitted supports for insertion of automatic dispensing equipment therebetween.
Claim 9
Dependent Claim
22 words
The tube support of claim 6, said sheeting material having a thickness prior to forming of from about 0.013 to 0.018 inch.
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) | 1991-12-20 | 1992-06-20 | 1992-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-20 | 1996-06-20 | 1996-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-20 | 2000-06-20 | 2000-12-20 | $7700.00 | Window Closed / Lapsed |