Stone working – Sawing – Reciprocating
Patent
1996-08-14
1998-01-27
Smith, James G.
Stone working
Sawing
Reciprocating
125 17, 836511, B28D 106
Patent
active
057112878
ABSTRACT:
An improved reciprocating saw is designed to compensate for distortion in a reciprocating blade head due to tensioning of a blade pack. The saw incorporates an improved linear rail pair supporting the blade head via four bearing housings. A first pair of bearing mounts which compensate for rotary motion between the blade head and the bearing housings are attached between a respective pair of the bearing housings and one side of the blade head a first blade head side member. A second pair of bearing mounts which compensate for both rotary motion and linear motion between the blade head and the bearing housings are attached between a second respective pair of the bearing housings and the opposite side of the blade head. The inventive bearing mounts thus compensate for bowing of side members of the blade head during blade tensioning. In addition, the improved saw uses a contoured, preloaded front cross member stiffener to both stiffen the front cross member of the blade head and prestress it in the opposite direction from which it will be bowed when the blade pack is tensioned. Finally, contoured, preloaded side member stiffeners can be used to both stiffen the side members and prestress them in a direction opposite from which they will be bowed during blade pack tensioning.
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Literature of THK Co., of Tokyo, Japan, for Linear Motion Systems, specifically type HSR, exact publication date unknown, but at least one year prior to the filing of the present application.
Linear motion technology guide of Thomson Industries, Inc., of Port Washington, New York, exact publication date unknown, but at least one year prior to the filing of the present application.
Usage manual of Varian of West Germany, for the Varian 7176 Wafering Machine, exact publication date unknown, but at least one year to the filing of the present application.
Sales literature of Sawyer Research Products, Inc. for Multiblade Wafering Saw, exact publication date unknown, but at least one year prior to the filing of the present application.
Sales literature Shure Manufacturing of Prairie Village, Kansas, for Shure-Cut-Model 20 Abrasive Saw, exact publication date unknown, but at least one year prior to the filing of the present application.
Sales literature of P.R. Hoffman Company of Carlisle, Pennsylvania, for FAC-10 Series Abrasive Saw, exact publication date unknown, but at least one year prior to the filing of the present application.
Sales literature of CSM Corporation of Willouby, Ohio, for CSM81 Wafering Machine, exact publication date unknown, but at least one year prior to the filing of the present application.
Sales literature of Kuowa Rika Co., Ltd. of Tokyo, Japan, for Multi Blade Slicing Machine, exact publication date unknown, but at least one year prior to the filing of the present application.
Sales catalog of Meyer Burger, for slicing machines, exact publication date unknown, but at least one year prior to the filing of the present application.
Installation, Operation and Maintenance Manual of Varian/Lexington Vacuum Division, of Lexington, Massachusetts, for 7186 Wafering Machine, exact publication date unknown, but at least one year prior to the filing of the present application.
Sales literature of Specialized Grinding Systems of Montville, New Jersey, for Meyer + Burger AG Multi Blade Wafering Machine, exact publication date unknown, but at least one year prior to the filing of the present application.
Sales literature of Yokoyama, for Multi Blade Slice Machine, exact publication date unknown, but at least one year prior to the filing of the present application.
Sales literature of Shure Manufacturing of Merriam, Kansas, for Abrasive Saw Model 2088, exact publication date unknown, but at least one year prior to the filing of the present application.
Banks Derris H.
Smith James G.
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