US5346656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for reclaiming scraps of crayon
Assignee: Individual
•
Filing: 1993-04-30
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Granted: 1994-09-13
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Expires: 2013-04-30
Abstract
Abstract A new crayon is made by loading a charge of crayon scraps into a non-metallic cylindrical mold that is coated internally with a vegetable oil release agent. The loaded mold is then placed in a domestic microwave oven and the charge of crayon scraps is heated by microwave energy until the charge becomes a molten mass, The mass is cooled and thereby solidified and is then ejected as a solid mass from the mold through its open top by removing the bottom of the mold and applying an upwardly directed force to the bottom of the solid mass to move same upward,
Inventors
- 👤 Grace Shafir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:38
CPC Classifications
B; B43; B43K; B43K19/00; B43K19/02; B29; B29C; B29C67/00; B29C67/24; B29C67/241; B43K19/16; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0855; B29C33/00; B29C33/56; B29C33/60; B29K; B29K2105/00; B29K2105/26; B29K2995/00; B29K2995/0018; B29K2995/002; B29K2995/0021; B29L; B29L2031/00; B29L2031/725; B29L2031/7254; Y; Y10; Y10S; Y10S264/00; Y10S264/911
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
156 words
A method of forming a new crayon from crayon scraps, said method including the steps of: (a) providing a nonmetallic mold having an open upper end, a lower end closed by a removable plug, and an elongated circular cross-section cavity; (b) placing a charge of solid crayon scraps in said cavity; (c) maintaining said mold in an upright molding position wherein its open upper end is positioned above its lower end while subjecting said charge to microwave energy to heat said scraps until they become a molten mass and cooling said molten mass until it solidifies into a new crayon; and then (d) removing said new crayon from said cavity by removing said plug and then applying a force to said new crayon at its end remote from said open upper end of said mold, which force is directed to drive said new crayon out of said cavity through said open upper end of said mold.
Claim 2
Independent Claim
156 words
A method of forming a new crayon from crayon scraps, said method including the steps of: (a) providing a nonmetallic mold having an open upper end, a lower end closed by a removable plug, and an elongated circular cross-section cavity; (b) placing a charge of solid crayon scraps in said cavity; (c) maintaining said mold in an upright molding position wherein its open upper end is positioned above its lower end while subjecting said charge to microwave energy to heat said scraps until they become a molten mass and cooling said molten mass until it solidifies into a new crayon; and then (d) removing said new crayon from said cavity by removing said plug and then applying a force to said new crayon at its end remote from said open upper end of said mold, which force is directed to drive said new crayon out of said cavity through said open upper end of said mold.
Claim 3
Dependent Claim
36 words
A method of forming a new crayon as set forth in claim 1 in which prior to performing said step (b) an oily coating is applied to said cavity to facilitate performance of said step (d).
Claim 4
Dependent Claim
36 words
A method of forming a new crayon as set forth in claim 2 in which: said crayon scraps include nubs and/or shavings; and some of said scraps are differently colored than are others of said scraps.
Claim 5
Dependent Claim
60 words
A method of forming a new crayon as set forth in claim 1 in which said step (c) is performed by mounting said mold to a non-metallic stabilizing unit that is operatively constructed to limit tipping of said mold from its upright molding position so as to prevent spilling of molten material from said cavity through its said first end.
Claim 6
Dependent Claim
22 words
A method of forming a new crayon as set forth in claim 1 in which said crayon scraps include nubs and/or shavings.
Claim 7
Dependent Claim
28 words
A method of forming a new crayon as set forth in claim 1 in which some of said scraps are differently colored than are others of said scraps.
Claim 8
Dependent Claim
19 words
A method of forming a new crayon as set forth in claim 1 in which said mold is transparent.
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) | 1997-09-12 | 1998-03-14 | 1998-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-09-12 | 2002-03-14 | 2002-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-09-12 | 2006-03-14 | 2006-09-13 | $7700.00 | Window Closed / Lapsed |