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특허 상세정보

Reusable coffee filter

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-035/28   
미국특허분류(USC) 210/456 ; 210/469 ; 210/474 ; 210/482
출원번호 US-0486626 (1974-07-08)
우선권정보 DT-2335506 (1973-07-12)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 17  인용 특허 : 0
초록

A reusable coffee filter with a pot-shaped hotwater container and a filter strainer adjacent an opening in the bottom of said container. The filter strainer is made of metallic sieve sheets having perforations flaring out in the flow direction. On top of the hotwater container a distribution plate is supportably held which has a plurality of holes distributed over an area corresponding to the vertical projection of the opening of the filter strainer in order to ensure a good wetting and extraction efficiency of the coffee powder.

대표
청구항

A reusable coffee filter comprising: a. a pot-shaped hot water container having a bottom wall defining an opening of a diameter smaller than the diameter of the hot water container; b. a frustro-conical filter strainer made of metallic sieve sheets depending from the opening in said pot-shaped hot waTer container, the bottom of said frustro-conical strainer comprising a horizontal sieve sheet; and c. a water distribution pan supported within said hot water container by means located at the top thereof, said pan having a bottom wall containing a large num...

이 특허를 인용한 특허 피인용횟수: 17

  1. Pope Randy D.. Beverage brewing substance holder. USP200105D442430.
  2. Zimmerman John D. (Springfield IL). Brewing funnel with screen filter assembly. USP1987024642190.
  3. Fischer Rudolph. Coffee brew basket. USP200004D423284.
  4. Long Joseph F. (1335 Lost Creek Blvd. Austin TX 78746). Controlled pore size coffee filter. USP1991075028328.
  5. Cook, Matthew R.; Fu, Thomas Z.. Disposable cup with curved rib. USP201301D675089.
  6. Cook, Matthew R.; Fu, Thomas Z.. Disposable cup with straight rib. USP201301D675090.
  7. Cook, Matthew R.; Fu, Thomas Z.. Disposable cup with wave rib. USP201301D675091.
  8. Fu, Thomas Z.; Cook, Matthew R.. Disposable single use beverage filter basket. USP2017049629494.
  9. Fu, Thomas Z.; Cook, Matthew R.. Disposable single use beverage package. USP2017089743798.
  10. Fu, Thomas Z.; Cook, Matthew R.. Disposable single use beverage package. USP2016129527661.
  11. Fu, Thomas Z.; Cook, Matthew R.. Disposable single use beverage package. USP2015089108794.
  12. Rudolph Fischer ; Ron Hinson ; James D. Hinson ; Roland D. Wolfe. Large brew basket. USP200206D459152.
  13. Morgan ; Jr. Howard W. (Michigan City IN). Liquid filter having self-retaining filter bag. USP1979014133769.
  14. Hendretti Thomas (2900 N.E. 14th St. ; Causeway #601 Pompano Beach FL 33062). Permanent coffee filter. USP1989054832845.
  15. Advani, Vinay. Reusable coffee filter. USP201501D721536.
  16. Fu, Thomas Z.; Cook, Matthew R.. Sealed beverage basket and method of making. USP2016099452879.
  17. Rudolph Fischer ; Ron Hinson ; James D. Hinson, Jr. ; Roland D. Wolfe. Tea brew basket. USP200207D460660.