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Inventor

Timothy S. Roman

Inventor
Minnetonka, MN, US

Overview

10→
Patents
2003–2021
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 10 as inventor

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

F04Bprimary
F04BPositive-displacement machines for liquids39%
F16JPistons11%
F16KValves11%
Y10TTechnical subjects covered by former us classification11%
F01LCyclically operating valves for machines or engines6%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general6%
F15BSystems acting by means of fluids in general6%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges6%
F16DCouplings for transmitting rotation6%
PatentTitleYear
10,982,665Bellows pressure relief valve202110,443,594Bellows anti-rotation construction201910,344,751Bellows installation and retention method201910,072,652Reciprocating positive displacement pump with electric reversing motor20189,464,630'Low ice pneumatic motor exhaust muffler'20169,394,900'Internal bellows pump fluid path'20169,188,110'Bellows backup chamber'20159,003,949'Automatic pneumatic valve reset system'20158,857,467'Pneumatically detented pilot valve'20146,505,991'Self-centering shaft adapter'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003Based in Brooklyn Park, MN, US· patent location history
2014–2021Patents assigned to GRACO MINNESOTA INC (8)· patent assignee history
2014–2021Based in Minnetonka, MN, US· patent location history
2015–2018Patents assigned to ROMAN TIMOTHY S (5)· patent assignee history
2015–2016Patents assigned to KALTHOFF ADAM L (2)· patent assignee history
2015–2016Patents assigned to SJODIN KURT R (2)· patent assignee history
2016Patents assigned to COLLINS ADAM K (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GRACO MINNESOTA INC82014–2021
ROMAN TIMOTHY Sself52015–2018
KALTHOFF ADAM L22015–2016
SJODIN KURT R22015–2016
COLLINS ADAM K12016
Locations
LocationPatentsSpan
Minnetonka, Minnesota, US92014–2021
Brooklyn Park, Minnesota, US12003