Inventor

Peter Alford

Inventor

Cheshire, OR, US

Overview

11→

Patents

1979–2009

Patent span

Performing operations

Primary field (CPC B)

Patents· 11 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B02Cprimary

B02CCrushing, pulverising, or disintegrating in general69%

Y10TTechnical subjects covered by former us classification15%

B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general8%

E02FDredging8%

PatentTitleYear

7,526,885'Splitter grappler'2009 6,910,647'Side removal screen system for materials reducing machines'2005 5,971,306'Gyratory crusher having tramp iron relief system with an annular hydraulic manifold'1999 5,944,265'Gyratory crusher having self-contained lubrication system'1999 5,875,981'Gyratory crusher having tramp iron relief system'1999 5,810,268'Gyratory crusher having easily removable mantel stud'1998 5,803,382'Gyratory crusher having corrugation-like-seal'1998 5,718,390'Gyratory crusher'1998 4,477,031'Apparatus for ready conversion of crushing cavity configuration in a cone crusher'1984 4,166,585'Impact crusher table construction'1979 4,165,655'Vibrating screen apparatus having dual function eccentric weights'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979Patents assigned to EL JAY INC (2)· patent assignee history

1979–1999Based in Cheshire, OR, US· patent location history

1984Patents assigned to IOWA MFG CO (1)· patent assignee history

1998–1999Patents assigned to CEDARAPIDS INC (6)· patent assignee history

2005–2009Patents assigned to PETERSON PACIFIC CORP (2)· patent assignee history

2005Based in Eugene, OR, US· patent location history

2009Based in Chesire, OR, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CEDARAPIDS INC	6	1998–1999
EL JAY INC	2	1979
PETERSON PACIFIC CORP	2	2005–2009
IOWA MFG CO	1	1984

Locations

Location	Patents	Span
Cheshire, OR, US	9	1979–1999
Chesire, OR, US	1	2009
Eugene, OR, US	1	2005