US5108677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a sand base article using a decomposable binder and the article formed thereby
Assignee: E Khashoggi Industries LLC
•
Filing: 1990-05-01
•
Granted: 1992-04-28
•
Expires: 2010-05-01
Abstract
Abstract The method includes the steps of mixing the sand and the decomposable binder to form a dough-like consistency, forming the dough-like mixture into a sheet. Cutting the sheet into silhouette shapes and then drying the shapes to form a rigid article suitable for a variety of purposes. The preferred article is coated with a decomposable waterproof sealant. Method of forming planar frangible targets as well as formed three-dimensionsl tableware and food containers are disclosed.
Inventors
- 👤 John Ayres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:35
CPC Classifications
F; F41; F41J; F41J1/00; F41J1/01; A; A63; A63B; A63B43/00; B; B29; B29C; B29C51/00; B29C51/002; B29C67/00; B29C67/24; F42; F42B; F42B12/00; F42B12/72; F42B12/74; B29C2793/00; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29K; B29K2003/00; B29K2503/00; B29K2503/04; B29K2995/00; B29K2995/0037; B29K2995/0059; B29L; B29L2031/00; B29L2031/712; Y; Y10; Y10S; Y10S220/00; Y10S220/30
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
62 words
A method of forming a container comprising the steps of: mixing sand and a decomposable binder together to form a dough-like consistency mixture; extruding the dough-like mixture into a thin sheet; cutting a silhouette-shaped preform from the thin sheet; drawing the silhouette-shaped preform into an article the shape of the container; and coating the article with a sealant to prevent moisture absorption.
Claim 2
Independent Claim
62 words
A method of forming a container comprising the steps of: mixing sand and a decomposable binder together to form a dough-like consistency mixture; extruding the dough-like mixture into a thin sheet; cutting a silhouette-shaped preform from the thin sheet; drawing the silhouette-shaped preform into an article the shape of the container; and coating the article with a sealant to prevent moisture absorption.
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein the decomposable binder used in the mixing step is formed by combining by weight 30-40% starch, 20-30% salt, 1-3% oil, and water.
Claim 4
Dependent Claim
21 words
The method of claim 1 further comprising applying a layer of paint to at least a portion of the article surface.
Claim 5
Dependent Claim
30 words
The method of claim 1 wherein the decomposable binder used in the mixing step is formed by combining by weight 25%-60% starch, 5-30% grain flour, 1/2-5% petroleum lubricant and water.
Claim 6
Dependent Claim
26 words
The method of claim 1 further comprising the step of heating the article for a sufficient time and to a sufficient temperature to dry the mixture.
Claim 7
Independent Claim
70 words
A method of forming a disposable food container, comprising the steps of: mixing sand and a non-toxic, biodegradable, water-soluble binder together to form a dough-like consistency mixture; forming the dough-like mixture into an article the shape of the container; heating the shaped article for a sufficient time and to a sufficient temperature to dry the mixture; and coating the dried article with a non-toxic, wax-based sealant to prevent moisture absorption.
Claim 8
Independent Claim
70 words
A method of forming a disposable food container, comprising the steps of: mixing sand and a non-toxic, biodegradable, water-soluble binder together to form a dough-like consistency mixture; forming the dough-like mixture into an article the shape of the container; heating the shaped article for a sufficient time and to a sufficient temperature to dry the mixture; and coating the dried article with a non-toxic, wax-based sealant to prevent moisture absorption.
Claim 9
Dependent Claim
47 words
The method of claim 6 wherein the step of forming further comprises extruding the dough-like mixture into a thin sheet, cutting a silhouette shaped pre-form out of the thin sheet and drawing the silhouette shaped pre-form into the three dimensional shape of the container to be formed.
Claim 10
Dependent Claim
26 words
The method of claim 7 further comprising applying a layer of paint to at least a portion of the article surface, prior to the coating step.
Claim 11
Dependent Claim
28 words
The method of claim 6 wherein the decomposition binder used in the mixing step is formed by combining by weight, 30%-40% starch, 20%-30% salt, 1%-3% oil, and water.
Claim 12
Dependent Claim
30 words
The method of claim 6 wherein the decomposable binder used in the mixing step is formed by combining by weight, 25%-60% starch, 5%-30% grain flour, 1/2-5% petroleum lubricant and water.
Claim 13
Dependent Claim
26 words
The method of claim 6 wherein the step of coating the dried article is carried out using a sealant having a melting point above 212° F.
References Cited (Backward Citations)
USRE26376E
Cited
US3676401A
Cited
US3415402A
Cited
US3654064A
Cited
US4191320A
Cited
US3844987A
Cited
US3852913A
Cited
US3867324A
Cited
US3932319A
Cited
US4124550A
Cited
US4568087A
Cited
US4246223A
Cited
US4641005A
Cited
WO1981001534A1
Cited
US4623150A
Cited
US4709808A
Cited
US4757940A
Cited
EP0376201A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-04-28 | 1995-10-28 | 1996-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-28 | 1999-10-28 | 2000-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-28 | 2003-10-28 | 2004-04-28 | $7700.00 | Window Closed / Lapsed |