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US 5,045,192 AGranted
Filter assembly with lockable lug means
AssigneeFacet Enterprises, Inc.
InventorRalph D. Terhune
Life of this patent
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AssigneeFacet Enterprises, Inc.
InventorRalph D. Terhune
Estimating the term…
A filter assembly including a base for supporting and providing fluid connection to a removable filter cartridge, the base having a hollow connecting end for mating with the cartridge, a removable filter cartridge comprising a filter medium and having a connecting end shaped to mate coaxially with the end of the base in a rotatable, telescopic relationship, the connecting end of one of the base and the cartridge having lug means extending radially toward the end of the other, the other connecting end having corresponding passage means for lockably receiving the lug means, the telescopically related mating ends of the base and cartridge providing radially opposed surfaces of circular cross-section about the mutual axis of the connecting ends of the base and cartridge, and a circular elastomeric sealing ring providing a radial seal between the circular cross-section surfaces, preventing liquid flow past it between the telescopic ends. Also disclosed are a spring locking mechanism to bias the lug means into locked position, and a filter cartridge having its filter medium both mechanically and adhesively secured to its connecting end member.
A filter cartridge assembly comprising
A method of making a filter cartridge assembly comprising
Dependencies are inferred from the claim text.