Inspection opening frame
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 13, 2001
Grant Date -
N/A
app pub date -
Dec 14, 1999
filing date -
Dec 14, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An inspection opening frame includes frame components each of which is provided with a support portion extending along the inner surface of an inspection opening, a front wall holding portion projecting outward from the front surface of the support portion, a rear lid holding portion projecting inward from the rear surface of the support portion, a front lid holding portion projecting inward from the front surface of the support portion and pivotally supported about a hinge, a rear wall holding portion projecting outward from the rear surface of the support portion and pivotally supported about another hinge, and locking portions each having a hook and a projection for disengageably locking the front lid holding portion and the rear wall holding portion in holding positions. The inspection opening frame can be easily mounted at the inspection opening without using a backing or the like.
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