Spice grinder

• US 9,044,120 B1
• Filed: 09/09/2014
• Issued: 06/02/2015
• Est. Priority Date: 09/09/2014
• Status: Expired due to Fees

• Current Assignee: Tu, Hsieh-Min
• Original Assignee: Tu, Hsieh-Min
• Inventors: Tu, Hsieh-Min
• Primary Examiner(s): Francis, Faye
• Application Number:
  US14/480,761
• Time in Patent Office: 266 Days
• Field of Search: 241/168, 241/169, 241/169.1
• US Class Current: 1/1
• CPC Class Codes: A47J 42/32 with other grinding or pulverising members
• CPC Class Codes: A47J 42/34 hand driven
• CPC Class Codes: A47J 42/36 mechanically driven

Abstract

A spice grinder is revealed. The spice grinder includes a base connected to a bottom of a container body, an inner grinding member, and an outer grinding member arranged between the container body and the base. The inner grinding member includes a plurality of grinding blades. Each grinding blade has an insertion hole on a center thereof. A rod of a fixing shaft is inserted through the insertion hole of each grinding blade. Thus a first fixing block on one end of the fixing shaft and a second fixing block on other end thereof are against a top and a bottom of the inner grinding member respectively. While in use, the container body and the base are rotated to drive the inner and the outer grinding members. Thus granular spices are ground gradually by the grinding blades. Therefore the granular spices are broken into fine grains precisely.

Claims

1. A spice grinder comprising

a container body with a hollow receiving space;

a base connected to a bottom of the container body and having a hollow material-out space;

an inner grinding member and an outer grinding member, both mounted between the container body and the base and arranged correspondingly to each other;

wherein the inner grinding member includes a plurality of grinding blades overlapped with one another;

teeth around a circumference of each of the grinding blades are not overlapped;

an insertion hole is mounted on a center of each of the grinding blades while a rod of a fixing shaft is inserted through the insertion hole of each of the grinding blades correspondingly;

a first fixing block is formed on one end of the rod while the other end of the rod is arranged with a fastening hole used for mounting a fastener;

a second fixing block is formed on one end of the fastener not connected to the rod;

the grinding blades of the inner grinding member are clamped and positioned between the first fixing block of the fixing shaft and the second fixing block.

2. The device as claimed in claim 1, wherein the inner grinding member further includes a plurality of overlapped toothed discs are arranged under the lowest grinding blade;

each of the toothed discs is arranged with a plurality of tiny teeth around a circumference thereof and an insertion hole at a center thereof;

the rod of the fixing shaft is inserted through the insertion hole of each of the toothed discs correspondingly so that the toothed discs of the inner grinding member are clamped and positioned between the first fixing block of the fixing shaft and the second fixing block.

3. The device as claimed in claim 2, wherein the inner grinding member further includes a positioning piece and a bottom pad;

the positioning piece is disposed above the grinding blades and having an insertion hole at a center thereof;

the bottom pad is arranged under the toothed discs and having an insertion hole at a center thereof;

the rod of the fixing shaft is inserted through the insertion hole of the positioning piece and the insertion hole of the bottom pad correspondingly so that the positioning piece and the bottom pad of the inner grinding member are clamped and positioned between the first fixing block of the fixing shaft and the second fixing block.

4. The device as claimed in claim 3, wherein two mounting holes are arranged at a bottom edge of the container body, opposite to each other;

two ends of the positioning piece of the inner grinding member are mounted into the mounting holes of the container body respectively.

5. The device as claimed in claim 3, wherein the insertion hole of the positioning piece, the insertion hole of each of the grinding blades, the insertion hole of each of the toothed discs, and the insertion hole of the bottom pad are all polygonal insertion holes while a shape of the rod of the fixing shaft is polygonal corresponding to a shape of the polygonal hole so as to be inserted through the polygonal insertion holes of the positioning piece, the grinding blades, the toothed discs, and the bottom pad correspondingly.

6. The device as claimed in claim 1, wherein the grinding blades having different sizes and overlapped with one another while the lower grinding blade is larger than the upper grinding blade.

7. The device as claimed in claim 6, wherein the outer grinding member includes a plurality of circular grinding blades overlapped with one another;

a plurality of teeth is arranged around a round hole of each of the circular grinding blades while the inner grinding member is mounted in the round holes of the circular grinding blades;

a diameter of the round hole of each of the grinding blades is decreased gradually from top to bottom.

8. The device as claimed in claim 1, wherein the outer grinding member includes a plurality of circular grinding blades overlapped with one another;

a plurality of teeth is arranged around a round hole of each of the circular grinding blades while the inner grinding member is mounted in the round holes of the circular grinding blades.

9. The device as claimed in claim 1, wherein a circular groove is disposed on a lower part of the container body and a retaining ring is mounted in the circular groove of the container body;

a connection portion with an inner diameter larger than an outer diameter of the container body is arranged above the material-out space of the base and used for mounting the bottom side of the container body;

a circular groove is disposed on an inner wall of the connection portion of the base and the retaining ring of the container body is mounted in the circular groove of the base correspondingly.

10. The device as claimed in claim 1, wherein the spice grinder further includes a top cover covered over the container body;

an inner threaded portion is formed on a sidewall of an upper part of the receiving space of the container body while an outer threaded portion is formed on an edge of a bottom side of the top cover;

the outer threaded portion is engaged with the inner threaded portion;

a handle is arranged at a top surface of the top cover.