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Class Information
Number: 198/502.4
Name: Conveyors: power-driven > With alarm or indicator > Means responsive to conveyor movement to indicate speed or to actuate alarm due to abnormal speed
Description: Apparatus wherein means senses the velocity of the conveyor movement and displays said velocity or actuates means warning on attendant if the velocity is erratic.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7195115 |
Modular-belt conveyors with variable-speed drive motors |
Mar. 27, 2007 |
| 7140486 |
Device for monitoring abnormality in a chain |
Nov. 28, 2006 |
| 6837363 |
Control device for overhead conveyors |
Jan. 4, 2005 |
| 6831566 |
Device for monitoring a conveyor |
Dec. 14, 2004 |
| 6814220 |
Retaining device for a conveyor belt assembly |
Nov. 9, 2004 |
| 6761263 |
Method for controlling the run-up of a conveyor belt and drive device for a conveyor belt |
Jul. 13, 2004 |
| 6758327 |
Conveyor drive assembly and method of operation |
Jul. 6, 2004 |
| 6508353 |
Conveyor and plant for baling paper pulp |
Jan. 21, 2003 |
| 6446788 |
Linear conveyor speed sensor |
Sep. 10, 2002 |
| 6209711 |
Conveying device for open-cast mines |
Apr. 3, 2001 |
| 6170820 |
Roller biasing for sheet engagement |
Jan. 9, 2001 |
| 5954186 |
Speed monitoring idler roller for conveyors |
Sep. 21, 1999 |
| 5871081 |
Concentric auger feeder |
Feb. 16, 1999 |
| 5645156 |
Device for monitoring escalator handrail speed |
Jul. 8, 1997 |
| 5490590 |
Chain wear monitor |
Feb. 13, 1996 |
| 5383014 |
Photoreceptor belt motion sensor using linear position sensors |
Jan. 17, 1995 |
| 5345954 |
Method of controlling and regulating the traveling speed of a continuous cigarette rod on a cigarette manufacturing machine |
Sep. 13, 1994 |
| 5337885 |
Alignment monitor and method |
Aug. 16, 1994 |
| 5248027 |
Method and apparatus for belt steering control |
Sep. 28, 1993 |
| 5230418 |
Photo-optic attachment for conveyor rollers |
Jul. 27, 1993 |
| 5199548 |
Controls in a goods assorting device |
Apr. 6, 1993 |
| 5096044 |
Method and apparatus for monitoring the run of a belt |
Mar. 17, 1992 |
| 5092446 |
Handrail monitoring system |
Mar. 3, 1992 |
| 5083656 |
Conveyor anti-runaway apparatus |
Jan. 28, 1992 |
| 5076568 |
Damping servo-motor control |
Dec. 31, 1991 |
| 5054601 |
Sorting conveyor |
Oct. 8, 1991 |
| 5011359 |
Silo rotary unloader monitor |
Apr. 30, 1991 |
| 4863006 |
Automatic shutoff apparatus for an escalator |
Sep. 5, 1989 |
| 4809576 |
Scrap removal system for stamping and forming machine and sensor apparatus for detecting movement between conveyor belts |
Mar. 7, 1989 |
| 4442933 |
Centrifugal switch for controlling belt hauling systems |
Apr. 17, 1984 |
| 4407162 |
Chain motion measuring device |
Oct. 4, 1983 |
| RE31338 |
Pump assembly driven by endless conveyor |
Aug. 9, 1983 |
| 4366897 |
Speed drop detector for high-speed bucket belt conveyor |
Jan. 4, 1983 |
| 4282967 |
Grain elevator controls |
Aug. 11, 1981 |
| 4282967 |
Grain elevator controls |
Aug. 11, 1981 |
| 4264905 |
Drive belt movement detecting system |
Apr. 28, 1981 |
| 4259918 |
Self-cleaning traction wheel motion sensor |
Apr. 7, 1981 |
| 4258840 |
Mounting for centrifugal switch and conveyor belt powered accessories |
Mar. 31, 1981 |
| RE30551 |
Belt switch |
Mar. 24, 1981 |
| 4240538 |
Method and apparatus for accumulating and gating articles |
Dec. 23, 1980 |
| 4236627 |
Cutting machine |
Dec. 2, 1980 |
| 4168611 |
Acceleration and/or deceleration control system for mechanical power drives |
Sep. 25, 1979 |
| 4119055 |
Traction wheel motion sensor |
Oct. 10, 1978 |
| 4088222 |
Belt switch |
May. 9, 1978 |
| 3989989 |
Conveyor overspeed-underspeed and/or slip detector |
Nov. 2, 1976 |
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