# US 9,518,651 B2 · Weighted gearshift knob

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- Number: US 9,518,651 B2
- Document ID: US9518651B2
- Status: Granted
- Kind: B2
- Application number: 14/876,807
- Filed: 2015-10-06
- Published: 2016-04-07
- Granted: 2016-12-13
- Earliest claimed: 2014-10-06
- Applicants: Carlos Joaquin Mendez
- Inventors: Carlos Joaquin Mendez
- Web page: https://patentgrep.com/patent/US9518651B2

## CPC

- F16H 59/0278: {Constructional features of the selector lever, e.g. grip parts, mounting or manufacturing}
- G05G 1/06: Details of their grip parts {(G05G1/10 takes precedence)}
- F16H: GEARING
- G05G: CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY ("Bowden" or like mechanisms F16C1/10; gearings or mechanisms not peculiar to this purpose F16H; speed changing or reversing mechanisms for gearings conveying rotary motion F16H59/00 - F16H63/00)

## Abstract

The present invention is a weighted gearshift knob for mounting to the gearshift shaft of a motor vehicle. The weighted gearshift knob comprises of a cylindrical exterior body with a hollow cylindrical interior for housing a cylindrical counter weight, which weight is secured by a removable screw, and said screw is covered by a cap. The weighted gearshift knob is designed to allow for the addition or removal of the counter weight as desired by a driver in order to achieve optimal performance. This design allows the gearshift knob and its components to be housed in one apparatus, requiring minimal assembly and/or disassembly for mounting or removal from the gearshift shaft.

## Claims

### Claim 1

A weighted gearshift knob comprising:
a removable cap;
a removable set screw;
a removable cylindrical weight;
a first segment that begins at an indentation and is rounded upwards to the cap, with a hollow interior for securely inserting the cap;
a second segment, which begins at the indentation of the first segment and contiguously connects to the first segment, having a conical shape with a hollow interior with screw grooves for securely fastening the removable set screw;
a third segment, contiguously connected to the second segment having a cylindrical shape with a hollow interior for rigidly housing the removable cylindrical weight;
a fourth segment, contiguously connected to the third segment, having an elliptical lip for facilitating attachment of the gearshift knob to a gearshift shaft; and
a fifth segment, contiguously connected to the fourth segment, having a cylindrical shape and having three set screw holes for securely mounting the gearshift knob onto the gearshift shalt with three set screws.

### Claim 2 (depends on 1)

A weighted gearshift knob as in claim 1, wherein the body of the gearshift knob is made of 100% DELRIN®, the cylindrical weight consists of steel weighing 100 grams.