USPatentGranted
B2

Product dispensing system

Granted 21 Oct 2014 · 8 office actions

Life of the patent

4 dated events
⤢ drag to zoom2009201020112012201320142015Prosecution
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Abstract

A flow control device is disclosed. The flow control device includes a solenoid, the solenoid including an armature. Also, a piston connected to the armature. The piston includes a primary orifice. The piston having an open position and a closed position. A piston spring connected to the piston is also includes and at least one secondary orifice. The movement of the piston to the open position at least partially opens the at least one secondary orifice and the movement of the piston to the closed position at least partially closes the at least one secondary orifice. The movement of the armature actuates the piston movement and controls fluid flow from the primary orifice through the at least one secondary orifice.

Claims

9 · 1 independent · depth 4
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9 granted claims

Classifications

9 codes
IPC · International Patent Classification
Section F — Mechanical engineering; lighting; heating; weapons
  • F16K3/26
Section G — Physics
  • G05D7/06
USPC · US Patent Classification
137/625.38251/129.15137/495137/315.3251/129.19251/129.2251/129.22

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File wrapper

Pendency
5.5 y
1,993 days filing → grant
Office actions
4
non-final + final
Responses
3
2 RCE
Examiner
Joel Zhou
art unit —
Citations: 96 back · 0 forward

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Priority chain

2 priority documents
Priority
27 Aug 2008
earliest claimed
›Priority documents — 2
TypeDocumentDate
provisionalUS 6109239627 Aug 2008
related publicationUS 20090277516 A112 Nov 2009

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Citations

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