Linwood R Anderson

US Patent:

6634837, Oct 21, 2003

Filed:

Oct 30, 2000

Appl. No.:

09/699659

Inventors:

Linwood Anderson - Roscoe IL

Assignee:

Cerbide Corporation - Clifton Park NY

International Classification:

B23P 1528

US Classification:

407118, 407119, 428698

Abstract:

A polycrystalline tungsten carbide ceramic cutting insert with chip control is disclosed for high speed machining.

US Patent:

6843824, Jan 18, 2005

Filed:

Nov 13, 2001

Appl. No.:

10/008806

Inventors:

Linwood Anderson - Roscoe IL, US

Assignee:

Cerbide - Clifton Park NY

International Classification:

C22C 2908

US Classification:

75240, 501 87

Abstract:

A method of making tungsten carbide and a method of making a densified tungsten carbide-containing ceramic body with a transverse rupture strength greater than 300,000 psi are disclosed.

US Patent:

7309373, Dec 18, 2007

Filed:

Aug 3, 2005

Appl. No.:

11/197183

Inventors:

Linwood Anderson - Roscoe IL, US

Assignee:

Cerbide Corporation - Clifton Park NY

International Classification:

B22F 3/12
C22C 29/08

US Classification:

75 18, 419 33, 419 35, 419 37, 419 38

Abstract:

A method of making tungsten carbide and a method of making a densified tungsten carbide-containing ceramic body with a transverse rupture strength greater than 300,000 psi are disclosed.

US Patent:

20040052593, Mar 18, 2004

Filed:

Oct 8, 2003

Appl. No.:

10/415174

Inventors:

Linwood Anderson - Roscoe IL, US

International Classification:

B23B027/14

US Classification:

407/119000

Abstract:

A polycrystalline tungsten carbide ceramnic cutting insert with chip control is disclosed for high speed machining.

US Patent:

20040181082, Sep 16, 2004

Filed:

Sep 19, 2003

Appl. No.:

10/415714

Inventors:

Linwood Anderson - Roscoe IL, US

International Classification:

C07F015/00

US Classification:

556/136000

Abstract:

A catalyst for the manufacture of acrylic acid or methacrylic acid by the oxidation of propylene, acrolein, or isobutylene whereby said catalyst is prepared by reducing a palladium salt or palladium metal to palladium with a reducing agent such as propylene in an oxygen-free single or two phase aqueous organic solvent containing as a co-solvent a maximum concentration of a C-Ccarboxylic acid or C-Cketone.

US Patent:

49799843, Dec 25, 1990

Filed:

Mar 16, 1990

Appl. No.:

7/495792

Inventors:

Linwood R. Anderson - Roscoe IL

Assignee:

Inserts Ltd. - Cedar Rapids IA

International Classification:

B22F 100

US Classification:

75228

Abstract:

A process is claimed for the manufacture of an insert. The process includes the steps of filling a die cavity defined by a die mold with powdered metal, the die cavity conforming to the required shape of the insert. The powdered metal is compressed within the die cavity such that a compact of the insert is formed within the die cavity. The compact is sintered within a sintering furnace so that a first porton of the compact is in the solid phase and a second portion of the compact is in the liquid phase. The compact is rapidly cooled within the sintering furnace to a temperature below the melting point of the powdered metal. Such temperature is maintained so that densification of the first portion to substantially full density is achieved. The arrangement is such that the profile integrity of the compact is retained. the resltant insert is then subsequently cooled.