Inventor
ARENDS ALBERT W
US24 patents
⚠️ This page may combine multiple inventors who share the name “ARENDS ALBERT W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LEESONA CORP
10 patentsUS4555377ANov 26, 1985
Thermoforming methods and apparatus
LEESONA CORP29 citations91
US4377377AMar 22, 1983
Differential pressure forming machine with variable mold closed cycle
LEESONA CORP34 citations91
US4509909AApr 9, 1985
Clamp mechanism for differential pressure thermoformer
LEESONA CORP23 citations82
US4158539AJun 19, 1979
Thermoforming machine with variable mold closed cycle
LEESONA CORP29 citations79
US4391768AJul 5, 1983
Methods and apparatus for curling lips about the open mouths of stacked thermoplastic containers
LEESONA CORP23 citations78
US4173161ANov 6, 1979
Trim press
LEESONA CORP19 citations73
US4306474ADec 22, 1981
Trim press with oscillating canopy sheet feed
LEESONA CORP14 citations72
US4194663AMar 25, 1980
Hydromechanical plastic web indexing system for synthetic plastics thermoforming machinery
LEESONA CORP16 citations72
US4502588AMar 5, 1985
Apparatus and methods for transferring nested stacks of plastic articles from an elevated chute to an underlying conveyor surface
LEESONA CORP13 citations71
US4255382AMar 10, 1981
Thermoforming machine with automatically mechanically operated web stripping element
LEESONA CORP18 citations70
BROWN MACHINE LLC
7 patentsUS6200122B1Mar 13, 2001
Thermoforming apparatus with improved press
BROWN MACHINE LLC48 citations92
US6055904AMay 2, 2000
Shut height adjustment and crank support arrangements and methods for a thermoforming press
BROWN MACHINE LLC20 citations92
US5980231ANov 9, 1999
Thermoforming machine with linear recirculation of sheet holding frames
BROWN MACHINE LLC43 citations91
US5940953AAug 24, 1999
Cart and method for changing tooling in a thermoformer machine
BROWN MACHINE LLC29 citations91
US6454557B1Sep 24, 2002
Thermoforming machine with linear recirculation of sheet holding frames
BROWN MACHINE LLC15 citations83
US7399175B2Jul 15, 2008
Thermoformer plug assist drive assembly
BROWN MACHINE LLC6 citations62
US6393942B1May 28, 2002
Method of driving ejector pins to eject formed parts
BROWN MACHINE LLC0 citations41
BROWN INC JOHN
4 patentsUS4608009AAug 26, 1986
Thermoforming equipment for differential pressure forming products in thermoplastic material
BROWN INC JOHN42 citations92
US5225213AJul 6, 1993
Apparatus for differential pressure forming and trimming
BROWN INC JOHN38 citations91
US4666544AMay 19, 1987
Thermoforming methods
BROWN INC JOHN31 citations91
US4676938AJun 30, 1987
Differential pressure thermoforming and foam injection process and apparatus
BROWN INC JOHN37 citations88