Inventor
Allyn J. Hein
Inventor
Camdenton, MO, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F04Bprimary
F04BPositive-displacement machines for liquids67%
F01BMachines or engines, in general or of positive-displacement type, e.g. steam engines17%
Y10TTechnical subjects covered by former us classification17%
PatentTitleYear
4,168,653'Two position variable displacement motor'19794,080,979'Combined summing and underspeed valve'19784,013,381'Pump control assembly having adjustable biasing means'19773,999,892'Interconnected pump control means of a plurality of pumps'19763,956,969'Hydrostatic pump including separate noise reducing valve assemblies for its inlet and outlet pressure ports'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1979Patents assigned to CATERPILLAR TRACTOR CO (5)· patent assignee history
1976–1979Based in Camdenton, MO, US· patent location history
1976Based in Joliet, IL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CATERPILLAR TRACTOR CO | 5 | 1976–1979 |
Locations
| Location | Patents | Span |
|---|---|---|
| Camdenton, MO, US | 4 | 1976–1979 |
| Joliet, Illinois, US | 1 | 1976 |