IP Library Granted Patent US 12,376,704
Granted Patent B1
US 12,376,704 · App. 18/769,787 · Granted Aug 5, 2025

Multifunctional portable grinder with integrated lighter holder and retractable mechanism

Inventors: Mark S. Hastings (Indian Rocks Beach, FL); Hai Pin Tsai (Kowloon, HK)
Assignee: Bar Products.com, Inc.
A47J42/14A47J42/20A47J42/30A47J42/34A47J42/38A47J42/40
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Quick Facts
Patent No.
US 12,376,704
App. No.
18/769,787
Granted
Aug 5, 2025
Kind
B1
Abstract

A multifunctional portable device that integrates a grinder with a lighter holder and retractable tether mechanism. This compact and easily portable form factor provides users with both a grinding tool and a readily accessible lighter. The device includes a carabiner clip for attachment, a grinder cap with unique grinding blades and apertures, a swivel mechanism, a retractable cord, and a lighter holder. The innovative threading and the magnetic pillar of the grinder allow the grinder cap to rotate freely for grinding without detaching from the base, enhancing the device's efficiency and usability.

Claims (29)

1. A grinder, comprising:

a grinder cap, the grinder cap including:

a solid top surface and a cylindrical wall extending from the top surface;

a plurality of upper grinding blades secured to the top surface;

a thread located on an inner surface of the cylindrical wall of the grinder cap, wherein the thread extends partially along a length of the inner surface of the cylindrical wall such that the inner surface of the cylindrical wall includes a thread-free section;

a grinder body, the grinder body including:

a bottom top surface and a cylindrical wall extending from the bottom surface;

a plurality of lower grinding blades secured to the bottom surface;

a thread located on an outer surface of a cylindrical wall of the grinder body, wherein the thread extends partially along a length of the outer surface of the cylindrical wall such the outer surface of the cylindrical wall includes a thread-free section;

wherein the grinder cap can be threaded onto the grinder body and continued rotation in a first direction causes the thread on the grinder cap to reach the thread-free section on the grinder body and the thread on the grinder body to reach the thread-free section on the grinder cap, thereby allowing the grinder cap to rotate freely relative to the grinder body without the thread on the grinder cap engaging the thread on the grinder body;

a central magnetic pillar within the grinder body that magnetically attracts the grinder cap, ensuring that the internal thread of the grinder cap remains in the thread-free section of the grinder body thereby allowing the grinder cap to freely rotate relative to the grinder body;

each upper grinding blade having a tower-shaped body with vertical sides equipped with teeth that extend along the height of the blade and catchments between the teeth;

each lower grinding blade having a tower-shaped body with vertical sides equipped with teeth that extend along the height of the blade and catchments between the teeth;

wherein the upper grinding blades and lower griding blades are arranged to operably compress and grind material into fragments during rotation of the grinder cap relative to the grinder body.

2. The grinder of claim 1 , wherein the grinder is configured to temporarily attach to a multifunctional portable device having:

a lighter housing configured to receive a lighter;

a retractable cord secured to a reel mechanism and to the lighter housing, the retractable cord allowing the lighter to be extended for use and retracted for storage;

a reel housing configured to house the reel mechanism; and

a clip attached to the reel housing for securing the device to an object.

3. The grinder of claim 1 , wherein the thread-free section on the grinder body has a length that is greater than a thread length of the thread on the grinder cap and the thread-free section on the grinder cap has a length that is greater than a thread length of the thread on the grinder body.

4. The grinder of claim 1 , wherein the grinder cap includes:

a first set of the upper grinding blades arranged in a first circular pattern around a center of the grinder cap, wherein the first set of upper grinding blades include three pairs of two interconnected blades equidistantly spaced about the first circular pattern;

a second set of the upper grinding blades arranged in a second circular pattern around the center of the grinder cap, wherein the second set of upper grinding blades include three pairs of two interconnected blades equidistantly spaced about the second circular pattern; and

wherein each pair of blades in the first set of upper grinding blades is radially aligned with one of the pairs of blades in the second set of upper grinding blades.

5. The grinder of claim 1 , wherein the grinder body includes:

a set of the lower grinding blades arranged in a circular pattern around a center of the grinder body, wherein the set of lower grinding blades includes three pairs of two interconnected blades equidistantly spaced about the circular pattern;

a set of wall blades equidistantly spaced about a circumference of a cylindrical wall of the grinder body; and

a first set of apertures arranged in a circular pattern around the center of the grinder body and a second set of apertures arranged in a circular pattern around the center of the grinder body.

6. The grinder of claim 5 , wherein each of the first set of apertures and each of the second set of apertures are non-circular and each of the first set of apertures is larger than each of the second set of apertures.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 22, 2026
From: BAR PRODUCTS.COM, INC.
To: LIGHTER LEASH LLC
Reel/Frame 075439/0120 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2024
From: HASTINGS, MARK S.; TSAI, HAI PIN
To: BAR PRODUCTS.COM, INC.
Reel/Frame 068017/0072 →
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