Speed control system for an access gate
Abstract
An access control apparatus for an access gate. The access gate typically has a rotator that is configured to rotate around a rotator axis at a first variable speed in a forward direction. The access control apparatus may include a transmission that typically has an input element that is operatively connected to the rotator. The input element is generally configured to rotate at an input speed that is proportional to the first variable speed. The transmission typically also has an output element that has an output speed that is higher than the input speed. The input element and the output element may rotate around a common transmission axis. A retardation mechanism may be employed. The retardation mechanism is typically configured to rotate around a retardation mechanism axis. Generally the retardation mechanism is operatively connected to the output element of the transmission and is configured to retard motion of the access gate in the forward direction when the first variable speed is above a control-limit speed. In many embodiments the transmission axis and the retardation mechanism axis are substantially co-axial. Some embodiments include a freewheel/catch mechanism that has an input connection that is operatively connected to the rotator. The input connectionmore »
- Inventors:
-
- Knoxville, TN
- Issue Date:
- Research Org.:
- Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1039744
- Patent Number(s):
- 8136297
- Application Number:
- 11/863,708
- Assignee:
- Babcock & Wilcox Technical Services Y-12, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
E - FIXED CONSTRUCTIONS E05 - LOCKS E05F - DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
E - FIXED CONSTRUCTIONS E05 - LOCKS E05Y - INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- DOE Contract Number:
- AC05-00OR22800
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Bzorgi, Fariborz M. Speed control system for an access gate. United States: N. p., 2012.
Web.
Bzorgi, Fariborz M. Speed control system for an access gate. United States.
Bzorgi, Fariborz M. Tue .
"Speed control system for an access gate". United States. https://www.osti.gov/servlets/purl/1039744.
@article{osti_1039744,
title = {Speed control system for an access gate},
author = {Bzorgi, Fariborz M},
abstractNote = {An access control apparatus for an access gate. The access gate typically has a rotator that is configured to rotate around a rotator axis at a first variable speed in a forward direction. The access control apparatus may include a transmission that typically has an input element that is operatively connected to the rotator. The input element is generally configured to rotate at an input speed that is proportional to the first variable speed. The transmission typically also has an output element that has an output speed that is higher than the input speed. The input element and the output element may rotate around a common transmission axis. A retardation mechanism may be employed. The retardation mechanism is typically configured to rotate around a retardation mechanism axis. Generally the retardation mechanism is operatively connected to the output element of the transmission and is configured to retard motion of the access gate in the forward direction when the first variable speed is above a control-limit speed. In many embodiments the transmission axis and the retardation mechanism axis are substantially co-axial. Some embodiments include a freewheel/catch mechanism that has an input connection that is operatively connected to the rotator. The input connection may be configured to engage an output connection when the rotator is rotated at the first variable speed in a forward direction and configured for substantially unrestricted rotation when the rotator is rotated in a reverse direction opposite the forward direction. The input element of the transmission is typically operatively connected to the output connection of the freewheel/catch mechanism.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 20 00:00:00 EDT 2012},
month = {Tue Mar 20 00:00:00 EDT 2012}
}