초록 ▼

A diaphragm for a vented master cylinder reservoir which further includes means for opening the slit thereby assuring venting of the master cylinder reservoir is provided. The slit opening means are configured in such a manner that contact of the slit opening means with the master cylinder cap will

A diaphragm for a vented master cylinder reservoir which further includes means for opening the slit thereby assuring venting of the master cylinder reservoir is provided. The slit opening means are configured in such a manner that contact of the slit opening means with the master cylinder cap will cause the diaphragm to be stressed and to elastically deform, therefore assuring the opening of the venting slit.

대표청구항 ▼

A diaphragm for a vehicle brake master cylinder fluid reservoir having a vented cap with a generally planar surface, said diaphragm in combination comprising: a sealing edge for mating with said cap and separating said reservoir fluid from said cap; a bellows portion integrally joined with said seal

A diaphragm for a vehicle brake master cylinder fluid reservoir having a vented cap with a generally planar surface, said diaphragm in combination comprising: a sealing edge for mating with said cap and separating said reservoir fluid from said cap; a bellows portion integrally joined with said sealing edge allowing said diaphragm to form a variable control volume above said reservoir fluid; a sheet portion integrally joined to said bellows portion covering said reservoir fluid, said sheet portion having at least one slit normally closed preventing the passage of fluid through said diaphragm; and at least one slit opening means fixably joined to said sheet portion whereby expansion of the fluid pressure below said diaphragm causes said slit opening means to contact said cap planar surface and to elastically stress said sheet portion to elastically deform to open said slit preventing said slit from being sealed on said cap planar surface allowing said master cylinder reservoir to vent to the atmosphere.