Assignee
GREER HYDRAULICS INC
41 granted patents·718 citations·filing 1974–1980
Top patents by PatentIndex Score
41 records- 0192US3961646APressure accumulatorGREER HYDRAULICS INC·Filed 1975·Granted Jun 8, 1976·47 cites·3 claims
- 0283US4295630AFail-safe actuator and hydraulic system incorporating the sameGREER HYDRAULICS INC·Filed 1979·Granted Oct 20, 1981·33 cites·2 claims
- 0383US4080996APressure pulse dampener deviceGREER HYDRAULICS INC·Filed 1976·Granted Mar 28, 1978·26 cites·2 claims
- 0481US4051338ALoad responsive switch actuatorGREER HYDRAULICS INC·Filed 1975·Granted Sep 27, 1977·30 cites·4 claims
- 0580US4299254APressure accumulator having a long life distensible bladderGREER HYDRAULICS INC·Filed 1980·Granted Nov 10, 1981·25 cites·1 claims
- 0679US4167201APressure accumulator with failure indicatorGREER HYDRAULICS INC·Filed 1978·Granted Sep 11, 1979·22 cites·1 claims
- 0779US4045861AMethod of forming a pressure accumulatorGREER HYDRAULICS INC·Filed 1976·Granted Sep 6, 1977·22 cites·6 claims
- 0879US4015819AGas charging value for accumulatorGREER HYDRAULICS INC·Filed 1975·Granted Apr 5, 1977·23 cites·1 claims
- 0978US4163461AHigh frequency pulse dampenerGREER HYDRAULICS INC·Filed 1978·Granted Aug 7, 1979·46 cites·2 claims
- 1078US4148012AAccess control systemGREER HYDRAULICS INC·Filed 1975·Granted Apr 3, 1979·81 cites·23 claims
- 1177US3960179ARepairable presssure vesselsGREER HYDRAULICS INC·Filed 1975·Granted Jun 1, 1976·22 cites·4 claims
- 1276US4181156APressure accumulator with anti-extrusion gas charging valve assemblyGREER HYDRAULICS INC·Filed 1978·Granted Jan 1, 1980·20 cites·8 claims
- 1375US4077100AMethod of forming pressure accumulatorGREER HYDRAULICS INC·Filed 1976·Granted Mar 7, 1978·19 cites·5 claims
- 1475US4069844APressure dampener deviceGREER HYDRAULICS INC·Filed 1976·Granted Jan 24, 1978·20 cites·3 claims
- 1573US4317472AReplaceable bladder accumulator deviceGREER HYDRAULICS INC·Filed 1980·Granted Mar 2, 1982·20 cites·9 claims
- 1670US4265274APulsation dampener for low output systemsGREER HYDRAULICS INC·Filed 1979·Granted May 5, 1981·16 cites·4 claims
- 1761US4344458AAccumulator device with improved bladder sealGREER HYDRAULICS INC·Filed 1980·Granted Aug 17, 1982·13 cites·2 claims
- 1860US4288894AMethod of manufacturing pressure vessels by heat formingGREER HYDRAULICS INC·Filed 1979·Granted Sep 15, 1981·14 cites·6 claims
- 1960US4098297APressure accumulator and method of forming the sameGREER HYDRAULICS INC·Filed 1976·Granted Jul 4, 1978·12 cites·2 claims
- 2059US4295492ALow cost accumulator deviceGREER HYDRAULICS INC·Filed 1979·Granted Oct 20, 1981·11 cites·4 claims
- 2159US3975861AAutomated parking gate and controlsGREER HYDRAULICS INC·Filed 1974·Granted Aug 24, 1976·23 cites·17 claims
- 2257US4178965APulsation dampener deviceGREER HYDRAULICS INC·Filed 1978·Granted Dec 18, 1979·19 cites·5 claims
- 2355US4273158APressure pulse dampening deviceGREER HYDRAULICS INC·Filed 1979·Granted Jun 16, 1981·21 cites·8 claims
- 2455US3930521AGas charging valve for accumulatorGREER HYDRAULICS INC·Filed 1974·Granted Jan 6, 1976·11 cites·6 claims
- 2553US3937496AFlexible couplingGREER HYDRAULICS INC·Filed 1974·Granted Feb 10, 1976·11 cites·2 claims
- 2651US3983678AMethod and apparatus for charging a hydro-pneumatic reservoir with gas under pressureGREER HYDRAULICS INC·Filed 1975·Granted Oct 5, 1976·16 cites·11 claims
- 2750US4108209ASilent-acting hydraulic accumulator deviceGREER HYDRAULICS INC·Filed 1977·Granted Aug 22, 1978·8 cites·3 claims
- 2849US3995145AMagnetic data reader employing magnetically operated solid state switches, and reader-lock combinationGREER HYDRAULICS INC·Filed 1975·Granted Nov 30, 1976·10 cites·14 claims
- 2948US4274446ALow cost repairable accumulatorGREER HYDRAULICS INC·Filed 1979·Granted Jun 23, 1981·7 cites·4 claims
- 3045US4307753AWide frequency pulsation dampener deviceGREER HYDRAULICS INC·Filed 1980·Granted Dec 29, 1981·17 cites·11 claims
- 3145US4298029APressure pulse dampener deviceGREER HYDRAULICS INC·Filed 1979·Granted Nov 3, 1981·6 cites·4 claims
- 3245US4102465ALocking ring for pressure vessel and method of making the sameGREER HYDRAULICS INC·Filed 1977·Granted Jul 25, 1978·6 cites·3 claims
- 3344US3962956AHydropneumatic valve actuatorGREER HYDRAULICS INC·Filed 1974·Granted Jun 15, 1976·11 cites·9 claims
- 3442US4291726AAccumulator device having safety charging portGREER HYDRAULICS INC·Filed 1979·Granted Sep 29, 1981·5 cites·2 claims
- 3539US4280533ALow pressure, low cost accumulatorGREER HYDRAULICS INC·Filed 1979·Granted Jul 28, 1981·6 cites·4 claims
- 3638US4348792AMethod of making low cost accumulatorGREER HYDRAULICS INC·Filed 1980·Granted Sep 14, 1982·4 cites·3 claims
- 3735US4099545ALarge port pressure accumulatorGREER HYDRAULICS INC·Filed 1976·Granted Jul 11, 1978·6 cites·2 claims
- 3834US4347871APressure accumulator with locking nutGREER HYDRAULICS INC·Filed 1978·Granted Sep 7, 1982·3 cites·2 claims
- 3934US4134429AHydraulic accumulator having an improved oil port sealGREER HYDRAULICS INC·Filed 1977·Granted Jan 16, 1979·3 cites·1 claims
- 4030US4182377ALow cost accumulator deviceGREER HYDRAULICS INC·Filed 1978·Granted Jan 8, 1980·0 cites·4 claims
- 4129US3947003AHydropneumatic springGREER HYDRAULICS INC·Filed 1974·Granted Mar 30, 1976·3 cites·12 claims
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