Refrigeration – Muffler or sound dampener
Reexamination Certificate
2006-02-21
2006-02-21
Norman, Marc (Department: 3744)
Refrigeration
Muffler or sound dampener
C062S298000, C248S638000
Reexamination Certificate
active
07000421
ABSTRACT:
An improved piping structure of an air conditioner can minimize a vibration by change in a piping shape in looped pipings. In the piping structure, a first directional piping part configured on a same plane is changed to be slanted at a predetermined angle on one end thereof, to be displaced onto a third plane, and to be connected with a second directional piping part configured on a different plane from that of the first directional piping part. Further, the piping structure comprises a vertical piping part wound in an up and down direction and a horizontal piping part connected to the vertical piping part having one end changed at a predetermined slant angle.
REFERENCES:
patent: 3918850 (1975-11-01), Bridigum
patent: 4614091 (1986-09-01), Frank et al.
patent: 6442959 (2002-09-01), Sone
patent: 2004/0031283 (2004-02-01), Ahn et al.
Chin Sim Won
Jung In Hwa
Lee Jung Woo
Birch & Stewart Kolasch & Birch, LLP
LG Electronics Inc.
Norman Marc
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