US3977528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rack having supporting tubes connected by means of releasable couplings
Assignee: ORSCHLER PRODUKTION KG
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Filing: 1975-05-19
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Granted: 1976-08-31
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Expires: 1995-05-19
Abstract
Abstract The invention relates to a tubular type of display rack assembly having tubular support members joined by coupling means. The coupling means includes units thereof which have two or more tubular members rigidly attached together in parallel relation to each other. Each such coupling unit facilitates the joining of a plurality of support members at any juncture to facilitate great flexibility in design possibilities for a display rack assembly.
Inventors
- 👤 Volker Ernst Uwe Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:34
CPC Classifications
A; A47; A47F; A47F5/00; A47F5/10; A47F5/13; F; F16; F16B; F16B7/00; F16B7/04; F16B7/0433; Y; Y10; Y10T; Y10T403/00; Y10T403/53; Y10T403/535
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
122 words
A rack assembly having tubular support members and tubular coupling means having equal inside diameters, coupling portions having outside diameters equal to said inside diameters for joining selective ones of said support members to selected ones of said tubular coupling means, said tubular coupling means including units thereof having at least two tube members fixedly joined in adjacent parallel relation to each other, said coupling portions including at least one unit thereof having an axially extending bifurcating slot at at least one end thereof, one of said tubular support members having a hole at one end thereof a threaded bore in said one unit aligned with said hole, and a screw extending through said hole into said bore for expanding said slot.
Claim 2
Dependent Claim
122 words
A rack assembly having tubular support members and tubular coupling means having equal inside diameters, coupling portions having outside diameters equal to said inside diameters for joining selective ones of said support members to selected ones of said tubular coupling means, said tubular coupling means including units thereof having at least two tube members fixedly joined in adjacent parallel relation to each other, said coupling portions including at least one unit thereof having an axially extending bifurcating slot at at least one end thereof, one of said tubular support members having a hole at one end thereof a threaded bore in said one unit aligned with said hole, and a screw extending through said hole into said bore for expanding said slot.
Claim 3
Dependent Claim
24 words
A rack assembly according to claim 1 wherein said one unit of said coupling portions extends entirely through one of said tubular coupling means.
Claim 4
Dependent Claim
28 words
A rack assembly according to claim 1 wherein at least one unit of said coupling means has a length which is an integer multiple of its outside diameter.
Claim 5
Dependent Claim
14 words
A rack assembly according to claim 1 wherein said screw is a set screw.
Claim 6
Dependent Claim
23 words
A rack assembly according to claim 1 wherein the outside diameters of said tubular support members and said tubular coupling means are equal.
References Cited (Backward Citations)
US658493A
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US1707363A
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DK65309C
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GB719968A
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FR1078295A
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FR1293229A
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US3276400A
Cited
GB1136288A
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US3521579A
Cited
US3620558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |