Container having liquid detecting function

Details Container having liquid detecting function Container having liquid detecting function

2005-12-12

2009-08-25

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S086000, C347S084000, C347S019000

Reexamination Certificate

active

07578567

ABSTRACT:
A liquid detecting container includes a cartridge case having a sending passage for sending out liquid, buffer chambers by the end of the sending passage, and a sensor unit disposed facing the buffer chambers. A sensor chip in the sensor unit includes a sensor cavity communicating with the buffer chambers, a vibration plate closing an opening side of the sensor cavity opposite to the side communicating with the buffer chambers, and a piezoelectric element disposed on the surface of the vibration plate opposite to the surface facing the sensor cavity; emits a vibration wave to the sensor cavity and the buffer chambers through the vibration plate, receives a reflected wave from the buffer chambers through the vibration plate, and then converts the reflected wave into an electrical signal. The compliance values of the buffer chambers are set ten times greater than the compliance value of the sensor cavity.

REFERENCES:
patent: 4787407 (1988-11-01), Vogel
patent: 6448623 (2002-09-01), Takahashi et al.
patent: 6921160 (2005-07-01), Tsukada
patent: 2001/0052627 (2001-12-01), Takahashi et al.
patent: 2003/0103119 (2003-06-01), Sakai et al.
patent: 1 053 877 (2000-11-01), None
patent: 2 413 385 (2005-10-01), None
patent: 2 415 662 (2006-01-01), None
patent: 2001-146024 (2001-05-01), None
patent: 2001-146030 (2001-05-01), None
patent: 2003-039707 (2003-02-01), None
Search Report, in British patent appln. No. GB 0 525 252.3, dated Mar. 27, 2006.
Office Action from U.S. Appl. No. 11/297,563 (Mar. 25, 2008).
Amendment from U.S. Appl. No. 11/297,563 (Jun. 18, 2008).

Affiliated with

Also associated with

Rating

Container having liquid detecting function does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Container having liquid detecting function, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Container having liquid detecting function will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4138432