Closure fasteners – Adjustable backset
Reexamination Certificate
1999-10-25
2001-07-10
Estremsky, Gary (Department: 3627)
Closure fasteners
Adjustable backset
C292S337000
Reexamination Certificate
active
06257630
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a tubular lock with a backset that is adjustable by means of removing a follower plate and moving a movable plate.
2. Description of the Related Art
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a tubular lock that can be adjusted to provide a longer backset and a shorter backset.
A tubular lock in accordance with the present invention includes an actuating plate mounted between two casing parts and having two teeth to be actuated by a spindle when the spindle is rotated. One of two mounting posts is extended through a positioning hole of a movable plate that is also mounted between the two casing parts. The movable plate provides a support to allow the spindle to rotate at a fixed point. The actuating plate includes a number of protrusions for positioning a follower plate. In a shorter backset status, the positioning hole of the movable plate is aligned with positioning holes in the casing parts for mounting one of the mounting posts. In a longer backset status, the follower plate is removed and the movable plate is moved to a longer backset position, wherein said one of the mounting posts is extended through the positioning holes and not extended through the positioning holes of the casing parts.
Other objects, specific advantages, and novel features of the invention will become more apparent from the following detailed description and preferable embodiments when taken in conjunction with the accompanying drawings.
REFERENCES:
patent: 4711477 (1987-12-01), Fann et al.
patent: 4746154 (1988-05-01), Fang
patent: 4750766 (1988-06-01), Shen
patent: 5149151 (1992-09-01), Shen
patent: 5490695 (1996-02-01), Shiue
patent: 5743573 (1998-04-01), Huang
Bacon & Thomas PLLC
Estremsky Gary
Taiwan Fu Hsing Industrial Co., Ltd.
LandOfFree
Tubular lock with adjustable backset does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tubular lock with adjustable backset, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tubular lock with adjustable backset will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2483234