US5159753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller shelf and method of making same
Assignee: Mechtronics Corp
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Filing: 1991-02-21
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Granted: 1992-11-03
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Expires: 2011-02-21
Abstract
Abstract The method of making a roller shelf for the display and dispensing of wares which includes molding a plurality of groups of molded parallel axles and rollers as a unit and with a common mold runner, the groups each having the same number of axles, providing a pair of side rails having opposed complementary bearing recesses, the number of the bearing recesses being an integral multiple of the number of axles in the groups, simultaneously inserting the axles of a group into the bearing recesses, fixing the axles in the recesses, and breaking off the runner. The roller shelf can have spaced rollers or interleaved and overlapping rollers.
Inventors
- 👤 Arthur L. Torrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:51
CPC Classifications
B; B65; B65G; B65G1/00; B65G1/02; B65G1/04; B65G1/06; B65G1/08; B29; B29C; B29C45/00; B29C2045/0086; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49544; Y10T29/49547; Y10T29/49556; Y10T29/49799; Y10T29/49826; Y10T29/4984
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
142 words
A method of making a roller self including the steps of: molding a plurality of groups of parallel roller structures each said roller structure comprising an axle having at least one roller joined integrally therewith, each said group having a common runner interconnecting said parallel roller structures in that said group, said groups each having the same number of said roller structures; providing a pair of side rails having opposed complementary beating recesses to receive said axles of said roller structures, the number of said bearing recesses being an integral multiple of the number of said roller structures in said groups, simultaneously inserting said axles of said roller structures of a said group into said bearing recesses, and thereafter breaking off said runner, whereby a roller bar is formed of each said pair of side rails and its inserted said roller structures.
Claim 2
Independent Claim
142 words
A method of making a roller self including the steps of: molding a plurality of groups of parallel roller structures each said roller structure comprising an axle having at least one roller joined integrally therewith, each said group having a common runner interconnecting said parallel roller structures in that said group, said groups each having the same number of said roller structures; providing a pair of side rails having opposed complementary beating recesses to receive said axles of said roller structures, the number of said bearing recesses being an integral multiple of the number of said roller structures in said groups, simultaneously inserting said axles of said roller structures of a said group into said bearing recesses, and thereafter breaking off said runner, whereby a roller bar is formed of each said pair of side rails and its inserted said roller structures.
Claim 3
Dependent Claim
47 words
The method of making a roller shelf as set forth in claim 1 including the step of mounting at least two of said roller bars parallel to one another and at an angle to the horizontal, whereby packages can be displayed and dispensed from said roller bars.
Claim 4
Dependent Claim
24 words
The method of making a roller shelf as set forth in claim 2 in which said angle to the horizontal is about eight degrees.
Claim 5
Dependent Claim
47 words
The method of making a roller shelf as set forth in claim 1 in which the spacing of said axles of said roller structures longitudinally of said runner is double that of said bearing recesses and said inserting step includes placing said axles in alternate said recesses.
Claim 6
Dependent Claim
54 words
The method of making a roller shelf as set forth in claim 4 further including placing said axles of said roller structures of a second group into each recess which does not yet have an axle therein, such that each roller on each said axle overlaps the said rollers on immediately adjacent said axles.
Claim 7
Dependent Claim
24 words
The method of making a roller shelf as set forth in claim 1 in which said rollers and said axles are molded of polypropylene.
References Cited (Backward Citations)
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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) | 1995-11-03 | 1996-05-04 | 1996-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-03 | 2000-05-04 | 2000-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-03 | 2004-05-04 | 2004-11-03 | $7700.00 | Window Closed / Lapsed |