Light duty belt cleaning system
AssigneeASGCO Manufacturing, Inc.
InventorsKeith E. Finger, George T. Mott
Life of this patent
Estimating the term…
Abstract
Belt cleaning apparatus includes a scraper blade mounted to a blade holder and urged against a belt for moving and/or removing material carried thereby. The blade includes a pair of flexible legs or skirts that engage the blade holder in snap-on/snap-off fashion. A tensioner includes inner and outer collars engaging the blade holder and a housing and a torsion spring between the collars tensions the blade. The housing engages one of the collars such as by a locking handle for fixing the spring tension and also serves to shield the tensioner from debris. The apparatus may be easily and quickly disassembled and assembled without tools, may be constructed of food-grade materials, and is “open” for ease of cleaning.
Claims70
A belt scraper comprising:
- a blade holder;
- a mount adapted to position said blade holder transverse to a belt;
- a blade mounted on said blade holder;
- and
- a tensioner including an outer collar affixed to said mount and an inner collar affixed to said blade holder, and a torsion spring coupled between said inner and outer collars for urging said blade toward the belt.
A belt scraper comprising:
- a blade holder;
- a scraper blade having a blade body, a blade tip on one end of said blade body and a pair of skirts extending from an end of said blade body opposite the blade tip, wherein said pair of skirts are flexible and define a blade cavity for receiving and engaging said blade holder;
- wherein said scraper blade is mounted on said blade holder with said blade holder disposed in said blade cavity with said skirts releasably engaging said blade holder;
- and
- a tensioner adapted for urging said scraper blade toward a belt.
A blade assembly comprising:
- a scraper blade having a blade body, a blade tip on one end of said body and a pair of skirts extending from an end of said body opposite the blade tip, wherein said pair of skirts are flexible and define a blade cavity and a key-bar groove therein;
- and
- a blade holder including a rod disposed in said blade cavity and an elongated key-bar extending radially from said rod with said key-bar disposed in said key-bar groove, said pair of skirts releasably engaging the rod of said blade holder.
The blade assembly of claim 3928 wherein said blade holder comprises a second rod substantially parallel to and spaced apart from said rod, and a web joining said second rod and said rod.
A scraper blade comprising an elongate body having a blade tip along one elongate end of said body and having a pair of skirts along and extending from an elongate end of said body opposite the blade tip, wherein said pair of skirts are flexible and define a groove adapted for receiving and engaging a blade holder.
A torsional tensioner for tensioning a member comprising:
- a mounting plate having a hole therethrough adapted for rotatably receiving the member;
- an arcuate housing affixed to and extending from said mounting plate and being arcuate about an axis intersecting said mounting plate proximate the hole therein;
- an outer collar spaced away from said mounting plate and having an arcuate edge complementary to the arcuate housing, said outer collar being rotatable with respect to said arcuate housing about an axis substantially intersecting the hole;
- a clamp for fixing the outer collar rotatably with respect to said arcuate housing within a continuous range of angular positions;
- an inner collar rotatably disposed between said outer collar and said mounting plate, said inner collar having a through hole adapted for receiving the member and being rotatable about an axis substantially intersecting the hole;
- and
- a torsion spring coupled between said inner and outer collars for urging relative rotational movement of said inner and outer collars toward a relaxed position of said torsion spring.
Dependencies are inferred from the claim text.