Biodegradable cup holder

• US 5,746,372 A
• Filed: 12/12/1996
• Issued: 05/05/1998
• Est. Priority Date: 12/12/1996
• Status: Expired due to Fees

• Current Assignee: American Excelsior Company
• Original Assignee: American Excelsior Company
• Inventors: Spence, Orville
• Primary Examiner(s): Elkins, Gary E.
• Application Number:
  US08/766,161
• Time in Patent Office: 509 Days
• Field of Search: 229/400, 229/403, 229/404, 229/4.5, 229/906.1, 220/737, 220/738, 220/739, 220/903
• US Class Current: 229/403
• CPC Class Codes: B65D 3/28 Other details of walls
• CPC Class Codes: B65D 65/46 Applications of disintegrable, dissolvable or edible materials
• CPC Class Codes: B65D 81/3874 formed of different materials, e.g. laminated or foam filling between walls
• CPC Class Codes: Y02W 90/10 Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Abstract

A beverage container holder formed from a water soluble starch based material in a configuration facilitating the wrap around engagement of a beverage container for the insulation thereof and convenience of the user. The cup holder may be provided in a generally planar sheet construction for facilitating the packaging, shipping and handling thereof and with an interlocking tab assembly for facilitating the securement around a beverage container, such as a coffee cup. Once used for insulating the hands of a user, the cup holder of the present invention may be discarded and disposed of with water or the like to comprise an environmentally convenient, water soluble, biodegradable assembly.

Claims

1. An improved beverage container holder of the type adapted for placement around a beverage container and being formed from a band adapted for wrapping around said container and providing insulation from said beverage container, said improvement comprising said band being formed of water soluble, biodegradable material with a plurality of randomly shaped, spaced-apart depressions distributed on portions thereof creating an air gap therein and between said band and said beverage container.

2. The apparatus as set forth in claim 1 wherein said water soluble, biodegradable material is starch based.

3. The apparatus as set forth in claim 2 wherein said starch is a high amylose modified starch.

4. The apparatus as set forth in claim 2 wherein said starch comprises vegetable starch processed from the group consisting of corn, wheat, rice and tapioca.

5. The apparatus as set forth in claim 1 wherein said band is formed with means for securing opposite ends of said band one to the other.

6. The apparatus as set forth in claim 5 wherein said securing means comprises a tab formed on a first end of said band and a slot formed in an opposite end of said band, said slot being sized to receive said tab therein.

7. The apparatus set forth in claim 5 wherein said securing means comprises an adhesive disposed on opposite ends of said band securing said ends one to the other.

8. The apparatus set forth in claim 1 wherein said water soluble band is adapted for creating a tacky surface for attachment to said container in the presence of moisture for securement of said band to said cup for the use thereof.

9. The apparatus as set forth in claim 1 wherein said band comprises an extruded sheet of high and low amylose starch presenting an irregular surface configuration thereon with an elongate length thereof.

10. A biodegradable insulating band for hot beverage containers, said band comprising:

an elongate body of extruded, biodegradable, starch based, water soluble material having a length sufficient for extending around said beverage containers and means for securing opposite ends of said biodegradable material around said beverage container.

11. The apparatus as set forth in claim 10 wherein said biodegradable material is formed of high and low amylose starch facilitating the dissolving of said band in an aqueous environment.

12. The apparatus set forth in claim 10 wherein said band further comprises a tab formed on a first end of said band and a slot formed in a second end of said band, said slot being sized to receive said tab therein for the interlocking engagement therebetween.

13. The apparatus set forth in claim 10 wherein said securing means comprises adhesive disposed on a first end of said band and adapted for securing a second opposite end of said band when positioned around said beverage container.

14. The apparatus set forth in claim 10 wherein said band is extruded into an elongate member having certain irregularities formed therein comprising depressions of random shape adapted for insulating said band from said beverage container.

15. The apparatus set forth in claim 10 wherein said starch comprises vegetable starch processed from the group consisting of corn, wheat, rice and tapioca.