US12345501 - Expandable baton
The patent describes an expandable baton featuring a dual inner support tube system with locking mechanisms that allow for secure extension and retraction. A release mechanism, activated by a pushbutton, controls the locking protuberances, enabling the baton to transition between locked and unlocked states.
Claim 1
- An expandable baton, comprising: a first tube including internal threads on an inner surface of a second end; a first inner support tube having a diameter less than that of the first tube, the first inner support tube including first external threads on an outer surface, the first external threads being secured to the internal threads of the first tube; a second inner support tube having a diameter less than that of the first tube, the second inner support tube including second external threads on an outer surface, the second external threads being secured to the internal threads of the first tube, the second inner support tube spaced from the first inner support tube with a first annular groove formed between them; a second tube having a diameter less than an inner diameter of the second inner support tube; a second lock mechanism disposed at a first end of the second tube and including two second lock protuberances, two second elastic members and a second externally threaded connection wherein the second externally threaded connection includes a second shoulder adjacent to the second lock protuberances, the inner diameter of the second inner support tube is less than an outer diameter of the second shoulder, the outer diameter of the second shoulder is less than an inner diameter of the first inner support tube, the second externally threaded connection is disposed in the first end of the second tube and the second shoulder urges against the first end of the second tube, a distance between each of the second lock protuberances and the second shoulder is equal to a length of the first annular groove, the second lock mechanism is moveably secured to the first annular groove, and the second tube is moveably disposed in the first tube; a first lock mechanism at the first end of the first tube, the first lock mechanism including two first lock protuberances, two first elastic members and a first externally threaded connection, the first externally threaded connection including a first shoulder adjacent to the first lock protuberances, the first externally threaded connection being disposed in the first end of the first tube and the first shoulder urges against the first end of the first tube, and the first tube being moveably disposed in a third tube; and a second annular groove formed on an inner surface of the third tube wherein a distance between each of the first lock protuberances and the first shoulder is equal to a length of the second annular groove, and the first lock mechanism is moveably secured to the second annular groove; a release mechanism including an axially moveable lock needle having a pointed second end and a housing at a first end, a pushbutton correspondently secured to the housing and projecting out of the first tube, and a spring disposed between the pushbutton and the housing; and a positioning member secured to the third tube for limiting the release mechanism at a first end of the third tube; a pressing of the pushbutton moves the lock needle to insert into the first and second lock mechanism, the first and second lock protuberances depart from the first and second annular groove and urge the first and second elastic members to an unlocked position; without a pressing of the pushbutton, the restored elastic members enable the first and second lock protuberances to return to the first and second annular groove to a locked position. a first tube including internal threads on an inner surface of a second end; a first inner support tube having a diameter less than that of the first tube, the first inner support tube including first external threads on an outer surface, the first external threads being secured to the internal threads of the first tube; a second inner support tube having a diameter less than that of the first tube, the second inner support tube including second external threads on an outer surface, the second external threads being secured to the internal threads of the first tube, the second inner support tube spaced from the first inner support tube with a first annular groove formed between them; a second tube having a diameter less than an inner diameter of the second inner support tube; a second lock mechanism disposed at a first end of the second tube and including two second lock protuberances, two second elastic members and a second externally threaded connection wherein the second externally threaded connection includes a second shoulder adjacent to the second lock protuberances, the inner diameter of the second inner support tube is less than an outer diameter of the second shoulder, the outer diameter of the second shoulder is less than an inner diameter of the first inner support tube, the second externally threaded connection is disposed in the first end of the second tube and the second shoulder urges against the first end of the second tube, a distance between each of the second lock protuberances and the second shoulder is equal to a length of the first annular groove, the second lock mechanism is moveably secured to the first annular groove, and the second tube is moveably disposed in the first tube; a first lock mechanism at the first end of the first tube, the first lock mechanism including two first lock protuberances, two first elastic members and a first externally threaded connection, the first externally threaded connection including a first shoulder adjacent to the first lock protuberances, the first externally threaded connection being disposed in the first end of the first tube and the first shoulder urges against the first end of the first tube, and the first tube being moveably disposed in a third tube; and a second annular groove formed on an inner surface of the third tube wherein a distance between each of the first lock protuberances and the first shoulder is equal to a length of the second annular groove, and the first lock mechanism is moveably secured to the second annular groove; a release mechanism including an axially moveable lock needle having a pointed second end and a housing at a first end, a pushbutton correspondently secured to the housing and projecting out of the first tube, and a spring disposed between the pushbutton and the housing; and a positioning member secured to the third tube for limiting the release mechanism at a first end of the third tube; a pressing of the pushbutton moves the lock needle to insert into the first and second lock mechanism, the first and second lock protuberances depart from the first and second annular groove and urge the first and second elastic members to an unlocked position; without a pressing of the pushbutton, the restored elastic members enable the first and second lock protuberances to return to the first and second annular groove to a locked position.
Google Patents
https://patents.google.com/patent/US12345501
USPTO PDF
https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12345501