Zero clearance lock
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 22, 1994
Grant Date -
N/A
app pub date -
Apr 22, 1993
filing date -
Apr 22, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A combinating tumbler lock featuring zero clearance between the lock plug and mounting shell including: a mounting shell having a central throughbore with a front section having a first, greater diameter and including longitudinal locking grooves, a rear section having a second smaller diameter and including longitudinal stopping grooves, and a tapered transition section between the front and rear sections; a lock plug for selective rotation within the mounting shell and having three sections corresponding in diameter to the sections in the mounting shell, the lock plug front section including a tumbler receiving opening, the lock plug rear section including a cam-receiving structure and a first radial throughbore, the lock plug also including a second radial throughbore between the front section and the tapered section; a tumbler disposed in the lock plug for selective engagement with the longitudinal locking grooves of the shell; a spring loaded stop comprising two spherical balls actuated by a compression spring disposed within the first radial throughbore to provide positive stop positioning and feel by selective engagement with the stopping grooves; and a spring loaded bearing in the form of two spherical balls actuated by a compression spring and disposed within the second radial throughbore.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully