Coffee maker with a variable brew strength apparatus

• US 4,328,740 A
• Filed: 12/22/1980
• Issued: 05/11/1982
• Est. Priority Date: 12/22/1980
• Status: Expired due to Fees

• Current Assignee: Hamilton Beach/Proctor-Silex Incorporated (Hamilton Beach Brands Holding Co.)
• Original Assignee: SCM Corporation (Heidelberg Materials AG)
• Inventors: Hanson, Thomas E., McDonough, Robert M., Brill, Richard H., Oates, Ronald W.
• Primary Examiner(s): JENKINS, ROBERT
• Application Number:
  US06/219,408
• Time in Patent Office: 505 Days
• Field of Search: 99/295, 99/300, 99/305, 99/306, 99/307, 99/313, 99/314, 99/316, 99/317, 99/285
• US Class Current: 99/295
• CPC Class Codes: A47J 31/0573 with flow through heaters flow through heaters as part of a water boiling vessel in a beverage making machine A47J31/542
• CPC Class Codes: A47J 31/0621 with means for varying the infusion outflow velocity, e.g. for brewing smaller quantities

Abstract

In accordance with the present invention, there is provided a coffeemaker with a variable brew strength apparatus which comprises a base which contains a water reservoir and a heater and which supports a coffee carafe. The base supports a variable brew strength apparatus directly over the coffee carafe. The variable brew strength apparatus includes a water restrictor member which is rotably mounted on the cover of a coffee basket member. The water restrictor member and the coffee basket member, in combination, form a valve which either admits heated water to an inner basket which is mounted in the coffee basket and which contains ground coffee, or causes a portion of the heated water to bypass the inner basket and enter the coffee basket to mix with and dilute coffee brewed in the inner basket. The coffee basket supports a special coffee scoop which has a tabular indicia relating the number of cups of coffee desired, the brew strength desired, and the number of scoops of coffee required. Brew strength indicia are provided on the cover of the coffee basket to facilitate the brewing of coffee using an optimum ratio of coffee and water.

Claims

1. A coffeemaker with a variable brew strength apparatus comprising a base, a water reservoir mounted in said base, electrically operated heater means mounted in said base and disposed to heat water stored in said reservoir, tubing means connecting said water reservoir and said heater means, coffee carafe means mounted on said base, basket means mounted on said base and disposed to accept heated water from said tubing means and to discharge brewed coffee into said coffee carafe, inner basket means mounted in said basket means for holding coffee grounds, valve means mounted on said basket means capable to directing a measured portion of said water into said inner basket means for brewing coffee and directing a measured portion of said water directly into said basket means, bypassing said inner basket, for diluting the coffee brewed in said inner basket means and coffee scoop means removably mounted on said basket means for introducing measured quantities of coffee into said inner basket means.

2. A coffeemaker according to claim 1 in which said valve means comprises a basket cover, mounted on said basket means, with said basket cover including a channel for conducting water around said inner basket means and into said basket means and water restrictor means rotatably mounted on said basket cover with said water restrictor means disposed to variably open and close said channel.

3. A coffeemaker according to claim 2 in which said water restrictor member is removably mounted on said coffee basket.

4. A coffeemaker according to claim 2 in which said water restrictor means includes a projecting indicator member and in which said basket cover includes indicia markings cooperating with said indicator member to indicate the rotary position of said water restrictor member relative to said basket cover and consequently the amount of water bypassed into said basket means.

5. A coffeemaker according to claim 2 in which said water restrictor means and said basket cover cooperate to form a rotary slide valve.

6. A coffeemaker according to claim 2 in which said water restrictor means includes a central portion having a plurality of centrally located holes and a pair of arcuate slots leading to said basket cover.

7. A coffeemaker according to claim 2 in which said basket cover includes a plurality of apertures leading to said inner basket means with said apertures having a discontinuous cross-section

8. A coffeemaker according to claim 2 in which said basket cover includes a plurality of apertures leading to said inner basket means with said apertures having a non-uniform cross-section.

9. A coffeemaker according to claim 1 further including flow restriction means mounted in said valve means for slowing the flow of heated water through said valve means.

10. A coffeemaker according to claim 1 in which said coffee scoop comprises an open rectangular container having a pair of side walls and a bottom wall.

11. A coffeemaker according to claim 10 in which said bottom wall includes thereon a table relating quantity of cups of coffee, brew strength and number of scoops of ground coffee required to be inserted into said inner basket means.

12. A coffeemaker according to claim 10 in which one of said side walls includes calibrated indicia indicating fractional volumetric portions of said coffee scoop means.

13. A coffeemaker according to claim 10 in which said coffee scoop further comprises a flange member.

14. A coffeemaker according to claim 13 in which said basket means includes a pair of spaced apart projecting wall portions, each of said wall portions including a slotted portion in which said flange member of said coffee scoop is interposed between said projecting wall portions and engages said slotted portions.