Coffee machine brew head

• US 20070039478A1
• Filed: 08/25/2005
• Published: 02/22/2007
• Est. Priority Date: 08/22/2005
• Status: Abandoned Application

• Current Assignee: Main Power Electrical Factory Limited (Midea Group Co., Ltd)
• Original Assignee: Main Power Electrical Factory Limited (Midea Group Co., Ltd)
• Inventors: Ng, Dicken
• Application Number:
  US11/211,089
• Publication Number:
  US 20070039478A1
• Time in Patent Office: Days
• US Class Current: 99/279
• CPC Class Codes: A47J 31/0668 specially adapted for cartridges
• CPC Class Codes: A47J 31/368 Permeable cartridges being employed
• CPC Class Codes: A47J 31/4407 Lids, covers or knobs

Abstract

A coffee machine brew head has a body with a pivotally connected closure. The body has a recess for a coffee holding device. The closure closes the recess to define a coffee brewing chamber. A pivotal handle of the brew head is movable in a closing direction and an opening direction. The brew head has a bayonet lock with a stationary part and a rotational part that is movable with or by the handle for locking and unlocking the closure when the handle is moved in the closing and opening directions respectively.

Claims

1. A coffee machine brew head comprising:

a brew head body having a recess for a coffee holding device and a water outlet passage from the recess,

a brew head closure pivotally connected to the brew head body and having a closed position closing the recess,

an inlet passage for delivering hot water to the recess,

a pivotal handle movable in a closing direction and an opening direction, and

a bayonet lock having a stationary part and a rotational part movable with or by the handle for locking and unlocking the closure in the closed position when the handle is moved in the closing and opening directions respectively.

2. A coffee machine brew head comprising:

a brew head body having a recess for a coffee holding device and a water outlet passage from the recess,

a brew head closure pivotally connected to the brew head body and having a closed position closing the recess,

an inlet passage for delivering hot water to the recess,

a rotational lock for securing the brew head closure in the closed position,

a beveled gear connected to the rotational lock, and

a pivotal handle having an open position and a closed position and a pinion gear for rotating the beveled gear and lock when the handle is moved between the open and closed positions.

3. The brew head of claim 2 wherein the rotational lock is a bayonet lock having a stationery locking part located on the brew head body and a rotational locking part located on the brew head closure.

4. The brew head of claim 2 wherein the rotational lock is a bayonet lock having a male locking ring with a plurality of bayonet lugs and a female locking ring having a plurality of corresponding tabs or groves for providing a locking interaction with the bayonet lugs.

5. The brew head of claim 3 wherein the male locking ring, beveled gear and handle are located on the brew head closure.

6. The brew head of claim 3 wherein the female locking ring is located on the brew head body concentric with the recess.

7. The brew head of claim 6 wherein the female locking ring has a gap for a handle of the coffee holding device.

8. The brew head of claim 5 wherein the brew head closure pivots about a first axis and the handle pivots about a second axis parallel with the first axis.

9. The brew head of claim 8 wherein the lock and beveled gear are rotational about a third axis perpendicular to the second axis.

10. The brew head of claim 2 further including a spreader connected to the inlet passage for evenly distributing hot water within the recess.

11. A coffee machine brew head comprising:

a brew head body having a recess for a coffee holding device and a water outlet passage from the recess,

a brew head closure pivotally connected to the brew head body about a first axis and having a closed position closing the recess,

an inlet passage for delivering hot water to the recess,

a first locking ring having a plurality of radial lugs located on the closure and rotational about a second axis,

a beveled gear coaxial with the first locking ring and fixed with the first locking ring,

a handle located on the closure and pivotal about a third axis parallel with the first axis, the handle having an open position and a closed position and a pinion gear coupled with the beveled gear for moving the beveled gear when the handle is moved between the open and closed positions, and

a second locking ring located on the brew head body and having a plurality of corresponding tabs or groves for providing a locking interaction with the radial lugs.