PatentVote.com: Vote on your favourite invention!

Next ten patents ordered by date:
Translate:
En
De
Es
Fr
It
Pt
Ja
Ko
Zh 

 

Title: Floor imbedded door bolt

Abstract: A security door stop bolt mounted in the floor preventing entrance through the door including a tube housing imbedded in the floor with a door stop sliding in the tube, nestled in the tube when not in use but raised with a manual lifting means to prevent inadvertent triggering of the stop bolt with a carpet cut out attached to the top of the door stop to hide the entire mechanism.


Do you think this is a good invention? Vote now:

 Votes so far: For:(0) Against:(0)
Other info:


Inventors: Steiner, John W. (Millville, NJ)

Application Number: 06/151900
Filing Date: 1980-05-21
Publication_date: 1982-08-10
Assignee: THUNDERBOLT CORP

Primary Class(es): 292/175 292/144, 292/150, 16/82, 292/DIG.015
Other Classes: E05C17/48; E05C17/00; E05C1/10
US Patent Ref:
2497697February, 1950Smith292/251.5Doorstop
2809062October, 1957Mainhardt292/144Latch mechanism
3330585July, 1967Pollin292/164Doorstop
3563586February, 1971Creamer292/144FLOOR BAR LOCK: FAIL SAFE
4183565January, 1980Allemann292/150Latch bolt locking mechanism for fire door locksets
4227726October, 1980Sorimachi292/251.5Door operating equipment

Other Refs:
Primary Examiner: Moore, Richard E.
Assistant Examiner:
Attorney: Lennox, Thomas A.
Claims:
I claim:<