IP Library › Granted Patent US 12,504,250
Granted Patent B2
US 12,504,250 · App. 19/093,482 · Granted Dec 23, 2025

String shooting device

Inventors: Stephen Giovanni Fazio (Atlanta, GA); Austin Mark Hillam (Atlanta, GA)
Assignee: ZIPSTRING LLC
F41B4/00A63H29/20A63H33/00A63H33/22
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Quick Facts
Patent No.
US 12,504,250
App. No.
19/093,482
Granted
Dec 23, 2025
Kind
B2
Abstract

Provided herein is a string shooting device, and more particularly, a string shooting device having that is wearable and operable by hand gestures or body movement. Embodiments include a wearable device for propelling a string including: a string shooting device; a band configured to attach to a body part of a user; and a holder, where the holder is secured by the band to the user; where, in response to the body part of the user being in a first position, the string shooting device is not actuated, and where in response to the body part of the user being in a second position, the string shooting device is actuated.

Claims (32)

1 . A device for propelling a string comprising:

a body including a cavity;

a pair of wheels attached to the body, wherein at least one wheel of the pair of wheels is a driven wheel, the driven wheel rotatable in a first direction and a second direction opposite the first direction;

a gap disposed between the pair of wheels, and wherein during use the string is propelled through the gap by the driven wheel in a first direction distal to a user;

an extension supported by the body and extending therefrom;

at least one strap configured to attach to a wrist of a user, and to position the extension within a palm of the user;

wherein an actuator is positioned on the palm within reach of at least one finger of the user in response to the at least one strap attaching to the wrist of the user and, wherein the actuator is configured to cause the driven wheel to be driven in the first direction in response to actuation, and in a second direction, opposite the first direction, to move the string toward the cavity.

2 . The device of claim 1 , further comprising a housing attached to the body proximate a first end of the body, wherein the housing at least partially covers the pair of wheels, wherein the housing defines an exit aperture, wherein the string is received into the gap and is propelled out of the exit aperture, and wherein the extension extends from the first end of the body.

3 . The device of claim 2 , wherein the cavity is defined within the body, wherein the cavity is positioned on an opposite side of the gap from the exit aperture.

4 . The device of claim 3 , wherein in response to further actuation of the actuator, the driven wheel ceases to be driven in a first direction, and begins to be driven in the second direction moving the string into the cavity.

5 . The device of claim 4 , wherein the string comprises a looped string, and wherein in response to the driven wheel being driven in the second direction, the looped string is piled within the cavity, wherein a length of the looped string within the cavity increases as the looped string is retrieved.

6 . The device of claim 3 , wherein the pair of wheels are configured to propel a looped string away from the device in response to the driven wheel rotating in a first direction and retrieve the looped string into the cavity in response to the driven wheel rotating in a second direction, opposite the first direction.

7 . The device of claim 6 , wherein the driven wheel of the pair of wheels rotates in the first direction in response to a first interaction with the actuator and the driven wheel of the pair of wheels rotates in the second direction for a predetermined amount of time in response to a second interaction with the actuator.

8 . The device of claim 1 , wherein the pair of wheels are attached at a first end of the body, and wherein the extension away from the body extends from the first end of the body.

9 . The device of claim 1 , further comprising a threading boss extending from the body, wherein the pair of wheels are disposed at a first end of the body, and wherein the threading boss extends from the first end of the body.

10 . The device of claim 1 , further comprising a housing, wherein the housing at least partially covers the pair of wheels, and wherein the housing defines a shape that extends from the body of the device to a loading slot aligned over the gap, wherein the housing slopes from the loading slot to the body.

11 . A device for propelling a string comprising:

a body;

a cavity associated with the body;

a pair of wheels attached to the body, wherein at least one wheel of the pair of wheels is a driven wheel, wherein the pair of wheels defines a gap therebetween, wherein a looped string is propelled through the gap by the driven wheel rotating in a first direction;

at least one strap configured to attach to a wrist of a user, and to hold the body against the wrist of the user along a length of the body;

a housing at least partially covering the pair of wheels, wherein the housing defines an exit aperture through which the string is propelled and an intake aperture, wherein an opening is defined between the housing and the cavity; and

an actuator, wherein the actuator is operable by the user using a hand associated with the wrist to cause the driven wheel to be driven in the first direction wherein the pair of wheels are configured to propel the looped string through the exit aperture away from the device and return the looped string to the intake aperture through the opening in response to the driven wheel rotating in the first direction and retrieve the looped string into the cavity in response to the driven wheel rotating in a second direction, opposite the first direction.

12 . The device of claim 11 , further comprising an extension member extending away from the body, wherein the actuator is attached to the extension member.

13 . The device of claim 12 , wherein the extension member is hingedly attached to the body at a hinge.

14 . The device of claim 13 , wherein the extension member is biased about the hinge toward a side of the body opposite a side of the body on which the pair of wheels are attached.

15 . The device of claim 14 , wherein the extension member is configured to align with a palm of a user in response to the device being attached to an inside of the wrist of the user with the at least one strap, and wherein the extension member is biased into the palm of the user.

16 . The device of claim 11 , wherein the cavity is at least one of defined within the body or attached to the body, wherein the cavity is positioned on an opposite side of the gap from the exit aperture.

17 . The device of claim 16 , wherein the pair of wheels are configured to propel a looped string through the exit aperture away from the device in response to the driven wheel rotating in the first direction and retrieve the looped string into the cavity in response to the driven wheel rotating in a second direction, opposite the first direction.

18 . The device of claim 11 , wherein the driven wheel of the pair of wheels rotates in the first direction in response to a first interaction with the actuator and the driven wheel of the pair of wheels rotates in the second direction for a predetermined amount of time in response to a second interaction with the actuator.

19 . The device of claim 11 , further comprising a threading boss extending from the body, wherein the pair of wheels are disposed at a first end of the body, and wherein the threading boss extends from the first end of the body.

20 . The device of claim 11 , further comprising a housing, wherein the housing at least partially covers the pair of wheels, and wherein the housing defines a shape that extends from the body of the device to a loading slot aligned over the gap, wherein the housing slopes from the loading slot to the body.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 28, 2025
From: FAZIO, STEPHEN GIOVANNI; HILLAM, AUSTIN MARK
To: ZIPSTRING LLC
Reel/Frame 070660/0669 →
Continuity (4)
Continuation In Part 19075598 · Mar 10, 2025
Provisional Application 63692214 · Sep 9, 2024
Provisional Application 63562770 · Mar 8, 2024
Related Publication 20250283686A1 · Sep 11, 2025
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Cited By (1)
US 12,734,458