Wrist sprayer

• US 5,924,601 A
• Filed: 01/06/1998
• Issued: 07/20/1999
• Est. Priority Date: 01/06/1998
• Status: Expired due to Fees

• Current Assignee: Chun-Liang Chen
• Original Assignee: Chun-Liang Chen
• Inventors: Chen, Chun-Liang
• Primary Examiner(s): Kashnikow, Andres
• Assistant Examiner(s): QUINALTY, KEATS ALAN
• Application Number:
  US09/003,576
• Time in Patent Office: 560 Days
• Field of Search: 222/78, 222/175
• US Class Current: 222/175
• CPC Class Codes: F41H 9/10 Hand-held or body-worn self-defence devices using repellant gases or chemicals

Abstract

A wrist type instantaneous sprayer comprises a pressurized storage tank, a button to release a gas and an adjustable wrist strap. For various purposes, the pressurized storage tank is filled with a compressed gas for the button to controllably release on an appropriate timing, thus facilitating for short distance defense, or for rescuing in case of first aid, or for escaping from a fire in time.

Claims

1. A sprayer to be worn on the wrist of a user comprising:

a pressurized storage tank having pins on both sides and filled with a gas under high pressure or a liquefied gas, said storage tank having a top portion, button releasing means screwed onto said top portion of said pressurized tank;

a button connected with said button releasing means, said button having a nozzle formed on said button, said nozzle communicating with said releasing means, said releasing means being in a communication position upon pressing down said button;

a wrist strap fastened onto the pins on both sides of said pressurized tank for wearing on the wrist of the user, wherein said nozzle of said button faces upwardly.

2. The sprayer according to claim 1 wherein said gas is a tear gas, said sprayer serving as a short distance self-defense device.

3. The sprayer according to claim 1 wherein said gas tank is a first aid drug, said drug being a trachea expander to serve as a first aid device for a respiratory patient.

4. The sprayer according to claim 1 wherein said pressurized storage tank is filled with liquefied oxygen.

5. The sprayer according to claim 1 wherein said wrist strap is adjustable by the user.

6. The sprayer according to claim 1 which comprises an elastic strap, said elastic strap is fastened onto said pins on said both sides of said pressurized storage tank to define a wearing clearance for said elastic strap to attach to said wrist strap.

7. The sprayer according to claim 1 wherein said storage tank has two ends and both ends of said pressurized storage tank are oblique.

8. The wrist sprayer according to claim 1 wherein said button is provided on one side of said pressurized storage tank.

9. The sprayer according to claim 8 wherein both sides of said pressurized storage tank are oblique and two pins are provided beneath said oblique sides.

10. The sprayer according to claim 1 wherein said storage tank has a bottom, said button is hermetic and is provided on one side of said pressurized storage tank and said button is received in an enclosure formed by the wall of said pressurized storage tank and the bottom portion thereof.

11. A sprayer according to claim 10 which comprises a releasing device, said releasing device comprising a guide pipe, said guide pipe having a center hole and being closed at the bottom, said button and said guide pipe loosely engage with each other whereby said button is pressed initially to define an idle and bumping period.

12. A sprayer according to claim 1 wherein said pressurized storage tank is made of transparent material.