Assignee
HEHL KARL
132 granted patents·2 pending applications·2,008 citations·filing 1974–2010
Top patents by PatentIndex Score
134 records- 0189US4565116AHydraulic speed controls for die closing unit of injection molding machineHEHL KARL·Filed 1983·Granted Jan 21, 1986·59 cites·12 claims
- 0288US4473346AMechanism for the attachment of interchangeable molds in an injection molding machineHEHL KARL·Filed 1982·Granted Sep 25, 1984·54 cites·17 claims
- 0387US4380427ACompact hydraulic drive for die closing unit of injection molding machineHEHL KARL·Filed 1981·Granted Apr 19, 1983·53 cites·12 claims
- 0485US5052910AClamping unit for injection molding machineHEHL KARL·Filed 1989·Granted Oct 1, 1991·49 cites·18 claims
- 0584US4995801AInjection molding machine provided with a conveyor for delivering molding from the machineHEHL KARL·Filed 1989·Granted Feb 26, 1991·46 cites·17 claims
- 0683US8292610B2Device for manufacturing a three-dimensional objectHEHL KARL·Filed 2010·Granted Oct 23, 2012·10 cites·13 claims
- 0782US5129806AHydraulic system in an injection molding machineHEHL KARL·Filed 1991·Granted Jul 14, 1992·48 cites·6 claims
- 0882US4558916AMulti-pin plug connection system for electronic control unitHEHL KARL·Filed 1983·Granted Dec 17, 1985·40 cites·23 claims
- 0982US4544340AAttachment mechanism for interchangeable injection molding diesHEHL KARL·Filed 1984·Granted Oct 1, 1985·42 cites·20 claims
- 1081US4846664AHydraulic system for the mold clamping unit of a plastics injection molding machineHEHL KARL·Filed 1987·Granted Jul 11, 1989·44 cites·11 claims
- 1180US4386626AProportional valve for hydraulic systemsHEHL KARL·Filed 1980·Granted Jun 7, 1983·35 cites·11 claims
- 1278US3974857ADevice for monitoring and adjusting the temperature of multiple cooling circuitsHEHL KARL·Filed 1974·Granted Aug 17, 1976·31 cites·12 claims
- 1378US3973888ADie closing unit for injection molding machine with molding die having multiple transfer sectionsHEHL KARL·Filed 1975·Granted Aug 10, 1976·33 cites·16 claims
- 1478US3936262AMulti-orifice injector nozzle for injection molding machineHEHL KARL·Filed 1974·Granted Feb 3, 1976·32 cites·11 claims
- 1577US4737095AComponent changing apparatus serving a group of injection molding machinesHEHL KARL·Filed 1987·Granted Apr 12, 1988·37 cites·23 claims
- 1677US4094621ADie closing unit with oversize injection molding dieHEHL KARL·Filed 1977·Granted Jun 13, 1978·31 cites·6 claims
- 1776US4645446AInjection molding machine with self-connecting ejection deviceHEHL KARL·Filed 1985·Granted Feb 24, 1987·34 cites·10 claims
- 1876US4518338AInjection molding machine with mold changing and mold preconditioning deviceHEHL KARL·Filed 1983·Granted May 21, 1985·34 cites·23 claims
- 1975US4690436APipe couplingHEHL KARL·Filed 1985·Granted Sep 1, 1987·40 cites·10 claims
- 2074US4462783AMechanism for exchanging molding dies in an injection molding machineHEHL KARL·Filed 1983·Granted Jul 31, 1984·30 cites·17 claims
- 2173US4678572AVented cover assembly with filter insert for fluid reservoirHEHL KARL·Filed 1986·Granted Jul 7, 1987·34 cites·15 claims
- 2273US4021181ATie rod connection for die closing unit of injection molding machineHEHL KARL·Filed 1976·Granted May 3, 1977·25 cites·5 claims
- 2372US4629410ADual-hopper injection unit for injection molding machineHEHL KARL·Filed 1983·Granted Dec 16, 1986·29 cites·9 claims
- 2471US4671764ALatching device for injection molding diesHEHL KARL·Filed 1985·Granted Jun 9, 1987·32 cites·13 claims
- 2571US4315728AAdjustable slide shoe for die carrier plate of injection molding machineHEHL KARL·Filed 1980·Granted Feb 16, 1982·23 cites·12 claims
- 2671US3982856ABase and power unit for injection molding machineHEHL KARL·Filed 1975·Granted Sep 28, 1976·20 cites·12 claims
- 2770US7890880B2Method and device for interactive control of a machineHEHL KARL·Filed 2004·Granted Feb 15, 2011·8 cites·25 claims
- 2870US4669533ACooling and filtering unit for hydraulic drive fluidHEHL KARL·Filed 1985·Granted Jun 2, 1987·25 cites·17 claims
- 2969US4712991AHydraulic control system for injection unit of injection molding machineHEHL KARL·Filed 1985·Granted Dec 15, 1987·28 cites·17 claims
- 3067US4768559ACooling apparatus on a plastics injection molding machineHEHL KARL·Filed 1987·Granted Sep 6, 1988·22 cites·12 claims
- 3167US4196634AValve device for selectively connecting a pressure gauge to a plurality of pressure linesHEHL KARL·Filed 1978·Granted Apr 8, 1980·18 cites·16 claims
- 3266US8221107B2Electrically driven mold clamping unit on an injection molding machineHEHL KARL·Filed 2009·Granted Jul 17, 2012·2 cites·10 claims
- 3365US4823551AHydraulic control circuit for an injection molding with two loads driven by a pumpHEHL KARL·Filed 1985·Granted Apr 25, 1989·24 cites·7 claims
- 3465US4680002AInjection molding machineHEHL KARL·Filed 1986·Granted Jul 14, 1987·24 cites·19 claims
- 3565US4382241AValve adjustment unit for hydraulic proportional-response valveHEHL KARL·Filed 1980·Granted May 3, 1983·14 cites·18 claims
- 3665US4105385ACompact die closing unit for injection molding machinesHEHL KARL·Filed 1977·Granted Aug 8, 1978·25 cites·13 claims
- 3764US4863368AInjection molding machine for a selective linear or central charging of mold assembliesHEHL KARL·Filed 1988·Granted Sep 5, 1989·23 cites·11 claims
- 3864US4373890AMechanical safety cover interlock for injection molding machineHEHL KARL·Filed 1981·Granted Feb 15, 1983·9 cites·8 claims
- 3963US5007816AInjection molding machine having a displacement control for an injecting unit carrierHEHL KARL·Filed 1989·Granted Apr 16, 1991·22 cites·15 claims
- 4062US4909061ADrawing toolHEHL KARL·Filed 1989·Granted Mar 20, 1990·16 cites·12 claims
- 4161US5024593AApparatus for transporting moldings from an injection molding machineHEHL KARL·Filed 1989·Granted Jun 18, 1991·20 cites·18 claims
- 4261US4828478AInjection molding machine having replaceable, interlockable mold halvesHEHL KARL·Filed 1987·Granted May 9, 1989·21 cites·9 claims
- 4361US4598336AInsertion code arrangement for interchangeable circuit board modulesHEHL KARL·Filed 1983·Granted Jul 1, 1986·15 cites·14 claims
- 4461US4545753AInjection molding machine with self-connecting ejection deviceHEHL KARL·Filed 1983·Granted Oct 8, 1985·18 cites·7 claims
- 4560US4708622AInjection molding unitHEHL KARL·Filed 1986·Granted Nov 24, 1987·20 cites·21 claims
- 4660US4105390ADie closing unit with plate adjustment mechanism for injection molding machineHEHL KARL·Filed 1977·Granted Aug 8, 1978·17 cites·16 claims
- 4759US4025264ADie closing unit with retractable tie rodsHEHL KARL·Filed 1975·Granted May 24, 1977·17 cites·18 claims
- 4858US4976598AInjection molding machineHEHL KARL·Filed 1989·Granted Dec 11, 1990·18 cites·11 claims
- 4957US7261555B1Closing device in a plastic injection molding machineHEHL KARL·Filed 2003·Granted Aug 28, 2007·2 cites·13 claims
- 5057US7217383B2Mold closing device with mold height adjustment and method for actuation thereofHEHL KARL·Filed 2002·Granted May 15, 2007·2 cites·18 claims
Showing the top 50 of 134 patent records by PatentIndex Score.
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