Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
136 words
In an apparatus for making a compacted powdered article comprising a die plate having at least one die cavity, means for dispensing a powdered material into said die cavity and lower and upper compacting members adapted to be aligned with said die cavity and disposed for relative movement toward and away from each other to compact said powdered material within said die cavity the improvement cavity, said lower compacting member being continuously slidably disposed in said die cavity, a fluid tight housing mounted below said die plate and entirely enclosing said lower compacting member, a fluid lubricant filling said housing and means for pressurizing said fluid lubricant in said housing for lubricating the walls of said die cavity by seepage of said fluid lubricant between said lower compacting member and said walls of said die cavity.
Claim 2
Dependent Claim
136 words
In an apparatus for making a compacted powdered article comprising a die plate having at least one die cavity, means for dispensing a powdered material into said die cavity and lower and upper compacting members adapted to be aligned with said die cavity and disposed for relative movement toward and away from each other to compact said powdered material within said die cavity the improvement cavity, said lower compacting member being continuously slidably disposed in said die cavity, a fluid tight housing mounted below said die plate and entirely enclosing said lower compacting member, a fluid lubricant filling said housing and means for pressurizing said fluid lubricant in said housing for lubricating the walls of said die cavity by seepage of said fluid lubricant between said lower compacting member and said walls of said die cavity.
Claim 3
Dependent Claim
29 words
The apparatus defined in claim 1, further comprising at least one stationary core rod disposed in said lower compacting member for forming a core hole in said compacted article.
Claim 4
Dependent Claim
13 words
The apparatus defined in claim 1 wherein said fluid lubricant is a liquid.
Claim 5
Dependent Claim
13 words
The apparatus defined in claim 1 wherein said fluid lubricant is a gas.
Claim 6
Dependent Claim
57 words
The apparatus defined in claim 1, wherein said pressurizing means comprises a reservoir disposed externally to said housing and conduit means placing said reservoir in communication with the interior of said housing, said reservoir being filled with said fluid lubricant at a level corresponding at least to the level of the upper extremity of said die cavity.
Claim 7
Dependent Claim
69 words
The apparatus defined in claim 1 wherein said lower compacting member comprises a punch having an end engaged in one end of said die cavity and reciprocable therewithin and a punch support connected to the other end of said punch for reciprocating said punch within said die cavity and for providing axial alignment between said punch and said die cavity, said housing enclosing said punch and said punch support.
Claim 8
Dependent Claim
40 words
The apparatus defined in claim 6, further comprising post means carried by said die plate, said punch support slidably engaging said post means for reciprocal movement relative to said die plate and means mounting said housing to said post means.
Claim 9
Dependent Claim
79 words
The apparatus defined in claim 7 wherein said housing is of a cup shaped tubular construction, said punch and said punch support are disposed within said tubular housing, the open end of said tubular housing is in abutment with the lower portion of said die plate in a fluid sealing engagement, and operating means extends through the lower end of said housing and is connected to said punch support for reciprocating said punch support relative to said die plate.
Claim 10
Dependent Claim
88 words
The apparatus defined in claim 8, further comprising a longitudinal bore extending In said punch from one end to the other end thereof, a core rod slidably and snugly disposed within said punch longitudinal bore and having an end projecting through said other end of said punch and said punch support, a core rod support fixedly mounted to said post means below said punch support and having means for mounting said core rod on said core rod support in axial alignment with the longitudinal bore in said punch.