Suction valve for water bag

• US 6,698,716 B2
• Filed: 06/05/2002
• Issued: 03/02/2004
• Est. Priority Date: 03/27/2002
• Status: Active Grant

• Current Assignee: Shih-Sheng Yang
• Original Assignee: Shih-Sheng Yang
• Inventors: Yang, Shih-Sheng
• Primary Examiner(s): Look, Edward K.
• Assistant Examiner(s): Fristoe, Jr., John K
• Application Number:
  US10/161,725
• Publication Number:
  US 20030183797A1
• Time in Patent Office: 636 Days
• Field of Search: 251/286, 251/288, 251/345, 251/352, 222/175, 224/148.2, 220/714
• US Class Current: 251/288
• CPC Class Codes: A45F 3/20 of flexible material; Collapsible or stackable cups
• CPC Class Codes: A47G 21/185 Mouthpieces
• CPC Class Codes: F16K 15/18 with actuating mechanism; Combined check valves and actuated valves
• CPC Class Codes: F16K 31/52408 comprising a lift valve

Abstract

A suction valve for water bag, includes a mounting block fastened to the water outlet tube of a collapsible water bag and adapted for guiding water out of the water outlet tube, a rotary valve block coupled to the mounting block for free rotation between a first position where the valve block closes the water passage through the mounting block and a second position where the valve block opens the water passage through the mounting block, a flexible suction nozzle threaded onto a tubular front screw rod of the rotary valve block for enabling the user to suck when the valve block rotated to the second position, and a hygienic cap adapted for protecting the flexible suction nozzle.

Claims

1. A suction valve for water bag comprising:

a mounting block fastened to the water outlet tube of a collapsible water bag, said mounting block comprising a stepped center through hole fastened to a front end of said water outlet tube, a water gate disposed in said stepped center through hole and adapted for guiding water out of said water outlet tube, an inside annular coupling flange, a guide groove disposed in a front side;

a rotary valve block coupled to said mounting block for rotating by the user to close/open the water gate of said mounting block, said rotary valve block comprising a front tubular screw rod, a finger wheel fixedly disposed on the middle for the gripping of the fingers, a protrusion protruded from one side of said finger wheel and inserted into said guide groove of said mounting block to guide rotary motion of said rotary valve block relative to said mounting block between a first position to close the water gate of said mounting block and a second position to open the water gate of said mounting block a water passage defined on the inside and adapted for receiving water from the water gate of said mounting block, a coupling groove extended around the periphery thereof and coupled to the coupling flange of said mounting block, a gasket fixedly transversely provided in a rear side thereof and adapted for closing the water gate of said mounting block, a water gate provided in said gasket and adapted for guiding water from the water gate of said mounting block to said water passage when said rotary valve block rotated to said second position, and a sealing flange protruded from an inner diameter of said finger wheel and spaced around said front screw rod; and

a flexible suction nozzle fastened to said rotary valve block and stopped against said sealing flange, said flexible suction nozzle having a crossed split in a transversely suspended thin layer of front sidewall thereof and a screw hole axially disposed in a rear side thereof and threaded onto the front tubular screw rod of said rotary valve block.

2. The suction valve as claimed in claim 1, wherein said flexible suction nozzle has a flexible plastic body internally reinforced with rigid plastic stretcher members.

3. The suction valve as claimed in claim 1 further comprising a hygienic cap adapted for covering said flexible suction nozzle.

4. The suction valve as claimed in claim 1, wherein said mounting block comprises a hanging lug protruded from the periphery thereof;

said hygienic cap comprises a hanging lug protruded from the periphery thereof and connected to the hanging lug of said mounting block by a cord member.