Quartz fin heat retaining tube
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Description
FIG. 1: a perspective view of a quartz fin heat retaining tube.
FIG. 2: a top plan view thereof.
FIG. 3: a front elevational view thereof.
FIG. 4: a cross sectional view taken along line 4--4 in FIG. 3.
FIG. 5: a cross sectional view taken along line 5--5 in FIG. 3.
FIG. 6: a left side view thereof.
FIG. 7: a right side view thereof.
FIG. 8: a bottom plan view thereof.
FIG. 9: a rear elevational view thereof; and,
FIG. 10: a reference figure showing the using state.
Referenced Cited
Patent History
Patent number: D424527
Type: Grant
Filed: Jul 24, 1997
Date of Patent: May 9, 2000
Assignee: Tokyo Elctron Limited (Tokyo-To)
Inventor: Katsutoshi Ishii (Kanagawa)
Primary Examiner: Lisa Lichtenstein
Law Firm: Ladas & Parry
Application Number: 0/74,283
Type: Grant
Filed: Jul 24, 1997
Date of Patent: May 9, 2000
Assignee: Tokyo Elctron Limited (Tokyo-To)
Inventor: Katsutoshi Ishii (Kanagawa)
Primary Examiner: Lisa Lichtenstein
Law Firm: Ladas & Parry
Application Number: 0/74,283
Classifications
Current U.S. Class:
Semiconductor, Transistor Or Integrated Circuit (24) (D13/182)
International Classification: 1303;
International Classification: 1303;