Conveyors: power-driven – Conveyor having impinging fluid to feed – shift or discharge... – Having cleaning means
Reexamination Certificate
1999-06-11
2001-01-30
Kramer, Dean J. (Department: 3652)
Conveyors: power-driven
Conveyor having impinging fluid to feed, shift or discharge...
Having cleaning means
C198S497000
Reexamination Certificate
active
06179114
ABSTRACT:
BACKGROUND TO THE INVENTION
This invention relates generally to a conveyor belt scraper and more particularly to a torsion holder for a belt scraper.
SUMMARY OF THE INVENTION
The invention provides a torsion holder for a conveyor belt scraper which includes a first tubular member with formations which are engageable with fixed structure, a second member which is located at least partly inside the first member, torsion means between the first and second members for resiliently restraining relative rotational movement of the second member inside the first member, a scraper blade carrier, and attachment means engaged with the second member and the scraper blade carrier.
The attachment means and the first member may include one or more bearing surfaces which facilitate the aforementioned rotational movement.
Sealing means may be provided between the attachment means and the first member.
The first member may be formed from at least two components which may be interengaged with one another in any appropriate way.
The first member may have any appropriate cross-section but preferably is square in cross-section.
Similarly the second member may have any appropriate cross-section but preferably is square in cross-section.
The first member may be displaced relatively to the second member by approximately 45° viewed in the axial directions of the two members.
The attachment means may comprise any suitable device or devices and preferably includes two bosses with formations which are respectively engageable with the scraper blade carrier and the second member.
The bosses may also include circular formations which are rotatably engageable with complementary circular formations on the first member.
The formations on the first member which are engageable with fixed structure may be shaped to engage with a sliding fit with a channel which includes a complementary cross-section to the shape of the formations.
A scraper blade may be attached to the blade carrier in any appropriate way and for example the blade carrier may include a groove or slot which receives a lower edge of an appropriate scraper blade.
The blade carrier may include protective skirts which depend downwardly from the groove and which at least partially obscure the first and second members thereby to protect these members against the effects of dirt or other foreign material.
The torsion means may be of any suitable shape, size or material and preferably includes one or more rubber elements located in one or more respective volumes between opposing surfaces of the first and second members.
REFERENCES:
patent: 4633999 (1987-01-01), Perneczky
patent: 4768644 (1988-09-01), Cromm
patent: 4850474 (1989-07-01), Schwarze
patent: 4962845 (1990-10-01), Gibbs
patent: 5082106 (1992-01-01), Schwarze
patent: 5088965 (1992-02-01), Swinderman et al.
patent: 5201402 (1993-04-01), Mott
patent: 5301797 (1994-04-01), Hollyfield, Jr. et al.
patent: 5339947 (1994-08-01), Campanile
patent: 5518107 (1996-05-01), Schwarz
patent: 5826700 (1998-10-01), Brink
patent: 5950803 (1999-09-01), Schwarze
patent: 5992614 (1999-11-01), Mott
patent: 2709714 (1978-09-01), None
patent: 0251051 (1988-01-01), None
patent: 0574600 A1 (1992-06-01), None
patent: 2227991 (1990-08-01), None
patent: 2315724 (1997-07-01), None
patent: 2290276 (1998-03-01), None
patent: 63-31926 (1988-02-01), None
patent: 740637 (1980-05-01), None
Chin Paul T.
Jones Tullar & Cooper PC
Kramer Dean J.
SLIC Trading Company Limited
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