Jul 21, 2026

US12687370 - Operational structure and methods for torsion-driven, counter acting block and tackle type energy storage and deployment systems

An operating system of an arrow launching device utilizes the combination of a speed-limited winch together with a nock-release and passive fall away arrow rest within torsion-driven compact arrow launching devices that employ counter-acting block and tackle propulsion. The system enables a novel method of cocking, firing and de-cocking that improves safety, enhances reliability and increases efficiency.

Assignee: SERPENT RURAL SPORTS LLC
Inventors: Jonathan C. Polanich, James T. Bond
Filing date: 2024-05-22

arrowlaunchingdeviceenergystorage

The patent describes a torsion-driven arrow launching device that integrates a speed-limited winch and a nock-release mechanism to enhance safety and efficiency during the cocking and firing process. This innovative system allows for simultaneous tensioning of the launching string while drawing back the arrow, improving the overall reliability of the device.

Claim 1

1 . A torsion-driven counteracting block and tackle pulley type compact arrow launching device, comprising: a speed-limited winch mounted within a rear stock of the torsion-driven counteracting block and tackle pulley type compact arrow launching device; and a nock release mounted on a top side of the torsion-driven counteracting block and tackle pulley type compact arrow launching device, wherein: the nock release includes a release latch operable to removably engage a nock of an arrow; the speed-limited winch is operable to move the nock release rearward within the torsion-driven counteracting block and tackle pulley type compact arrow launching device to move the arrow from a loaded position to a cocked position; and the speed-limited winch is operable to simultaneously tension a launching string of the torsion-driven counteracting block and tackle pulley type compact arrow launching device while drawing back the arrow during a cocking process. a speed-limited winch mounted within a rear stock of the torsion-driven counteracting block and tackle pulley type compact arrow launching device; and a nock release mounted on a top side of the torsion-driven counteracting block and tackle pulley type compact arrow launching device, wherein: the nock release includes a release latch operable to removably engage a nock of an arrow; the speed-limited winch is operable to move the nock release rearward within the torsion-driven counteracting block and tackle pulley type compact arrow launching device to move the arrow from a loaded position to a cocked position; and the speed-limited winch is operable to simultaneously tension a launching string of the torsion-driven counteracting block and tackle pulley type compact arrow launching device while drawing back the arrow during a cocking process.

Google Patents

https://patents.google.com/patent/US12687370

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12687370