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US 4,201,347 AGranted
Crematory ash grinder
AssigneeJames D. McCampbell
InventorB. Jack Elkin
Life of this patent
Estimating the term…
Abstract
A mechanism is provided for crushing and grinding cremated remains and includes a vertical cylindrical housing, a stationary bearing plate positioned transversely across the shaft defined within the housing, and a rotatable perforated grinding disk. The weight of the bearing plate crushes the crematory ashes as the grinding disk rotates, and the ground cremation remains fall through apertures in the grinding disk into a funnel for collection in an urn positioned below.
Claims9
A crematory ash grinder comprising
- a vertically oriented cylindrical drum;
- a grinding disk mounted coaxially relative to said drum and having a flat surface with multiplicity of apertures therethrough;
- a bearing plate mounted coaxially relative to said drum above said grinding disk in spaced relationship thereto and having a downwardly facing flat bearing surface with a plurality of blunt protrusions extending axially a uniform distance therefrom and located across the expanse of said bearing surface;
- adjustable means acting between said cylindrical drum and said bearing plate for varying the spacing therebetween;
- a funnel positioned beneath said grinding disk for receiving ground ashes emanting through said apertures for collection in an urn located therebeneath;
- drive means secured relative to said drum including an electric motor and speed reducing gears for slowly turning one of said grinding disk and said bearing plate in rotation relative to said drum;
- and
- a rotation restraining means for immobilizing one of said bearing plate and said grinding disk from rotation relative to said drum.
5 more elements
A crematory ash grinder comprising
- a vertically oriented cylindrical housing defining a shaft, a bearing plate removably positionable across said shaft and having a downwardly facing flat bearing surface with a plurality of blunt protrusions extending axially a uniform distance therefrom located across the expanse of said flat bearing surface,
- an apertured grinding disk coaxially and rotatably mounted in said shaft beneath said bearing plate and proximate thereto,
- adjustable means acting between said cylindrical drum and said bearing plate for varying the spacing between said bearing plate and said grinding disk.
- drive means secured to said housing for driving said grinding disk and including an electric motor and speed reducing gears,
- rotation restraining means for immobilizing said bearing plate from rotation relative to said drum, and
- a funnel located beneath said grinding disk with an enlarged end directed vertically upward and having a constricted end for discharge into an urn removably positioned therebeneath.
3 more elements
Dependencies are inferred from the claim text.