Bellows face seal assembly
AssigneeFreudenberg-Nok GP
InventorJohn C. Dahlheimer
Life of this patent
Estimating the term…
Abstract
A seal head assembly includes a case. A ferrule is seated against the case. A spring is seated at one end against the ferrule. A spring seat receives a second end of the spring. The retainer ring has a band and a plurality of tabs, wherein the band engages the spring seat. A metal bellows has a first end in contact with the case and a second end having a contact surface for the tabs of the retainer ring. A seal washer has an annular groove, wherein the seal washer is received in the second end of the metal bellows. A seal is received in the annular groove of the seal washer.
Claims13
A seal head assembly comprising:
- a case;
- a ferrule seated against the case;
- a spring seated at one end against the ferrule;
- a spring seat receiving a second end of the spring;
- a retainer ring having a band and a plurality of tabs, wherein the band engages the spring seat,
- a metal bellows having a first end into contact with the case and a second end having a contact surface for the tabs of the retainer ring;
- a seal washer having an annular groove, wherein the seal washer is received in the second end of the metal bellows;
- and
- a seal received in the annular groove of the seal washer.
A seal assembly comprising:
- a seal head subassembly including
- a case;
- a ferrule seated against the case;
- a spring seated at one end against the ferrule;
- a spring seat receiving a second end of the spring;
- a retainer ring having a band and a plurality of tabs, wherein the band engages the spring seat,
- a metal bellows having a first end into contact with the case and a second end having a contact surface for the tabs of the retainer ring;
- a seal washer having an annular groove, wherein the seal washer is received in the second end of the metal bellows;
- and
- a seal received in the annular groove of the seal washer;
- and
- a seal seat subassembly pressed into the seal head subassembly.
Dependencies are inferred from the claim text.