The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 1996
Filed:
Jul. 06, 1995
Applicant:
Inventors:
Allen E Bardwell, Front Royal, VA (US);
Herbert W Morgan, Front Royal, VA (US);
Assignee:
Trident Industries, Inc., Front Royal, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01F / ;
U.S. Cl.
CPC ...
49 34 ; 49-9 ; 49322 ;
Abstract
A security barrier apparatus suitable for use in residential, farm and industrial settings includes a motor, a chain and a brake mechanism for engaging the chain. The apparatus is mounted to a first support such as a post. The chain extends from the first support to a second spaced support and is raised and lowered relative to the ground by operation of the motor. The motor may be remotely actuated by an electronic transmitter. The apparatus further includes protective features to prevent damage to the motor in the event that a vehicle collides with the chain.