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US 4,257,564 AGranted
Apparatus and method for crushing material
OwnerJames B. Pamplininventor
Life of this patent
Estimating the term…
Abstract
A crushing apparatus comprising first and second crushing jaws with each of the crushing jaws having a crushing surface. The crushing surfaces are arranged to define an acute angle no larger than about 45 degrees and to at least partially define a crushing cavity for receiving material to be crushed. The crushing jaws are relatively moved along a path generally parallel to the crushing surface of the first jaw so that the spacing between the crushing surfaces does not vary with the relative movement of the jaws. The relative movement between the jaws can be linear or rotational.
Claims21
An apparatus for crushing material comprising:
- first and second crushing jaws;
- each of said jaws having a crushing surface;
- said crushing surfaces being inclined relative to each other to define an acute angle no larger than about 45.degree., said crushing surfaces at least partially defining a crushing cavity for receiving material to be crushed by said crushing jaws;
- means for mounting said jaws for relative movement along a path generally parallel to said crushing surface of said first jaw so that said jaws are essentially prevented from moving away from each other during normal operation of the apparatus, at least a component of said path lying in the plane of the acute angle;
- and
- means for relatively moving said jaws along said path, said jaws being configured so that the material in said crushing cavity is compressively loaded and crushed by the crushing surfaces of the jaws.
3 more elements
An apparatus for crushing material comprising:
- a supporting structure;
- first and second crushing jaws;
- said first crushing jaw having a crushing surface;
- said second crushing jaw having an essentially conical crushing surface;
- first means for mounting the first crushing jaw on the supporting structure for rotation about a first rotational axis;
- second mounting means for mounting the second crushing jaw on the supporting structure for rotation about a second rotational axis, said crushing surfaces being in confronting relationship and defining an acute angle in axial cross section, said crushing surfaces defining a crushing cavity for receiving material to be crushed;
- said rotational axes being essentially parallel and radially spaced at least during operation of the apparatus, said crushing surfaces being configured so that rotation of the crushing jaws about their respective rotational axes compressively loads and crushes and material in the crushing cavity;
- and
- means for retaining the crushing jaws against movement axially away from each other during normal operation of the apparatus.
6 more elements
A method of crushing material comprising:
- providing first and second crushing jaws with each of the crushing jaws having a crushing surface and with the crushing surfaces being inclined relative to each other to define an acute angle no larger than about 45 degrees, said crushing surfaces at least partially defining a crushing cavity;
- depositing material to be crushed into the crushing cavity;
- and
- relatively moving the jaws along a path generally parallel to said crushing surface of said first jaw to maintain the spacing between the crushing surfaces essentially constant as the jaws are relatively moved and to compressively load and crush material deposited in the crushing cavity.
1 more element
An apparatus for crushing material comprising:
- a supporting structure;
- first and second crushing jaws;
- said first crushing jaw having a crushing surface;
- said second crushing jaw having an essentially conical crushing surface;
- first means for mounting the first crushing jaw on the supporting structure for rotation about a first rotational axis;
- second mounting means for mounting the second crushing jaw on the supporting structure for rotation about a second rotational axis, said crushing surfaces being in confronting relationship and defining an acute angle in axial cross section, said crushing surfaces defining a crushing cavity for receiving material to be crushed;
- said rotational axes being essentially parallel and radially spaced whereby rotation of the crushing jaws about their respective rotational axes crushes the material in the crushing cavity;
- and
- an oil reservoir driven with one of said crushing jaws for receiving oil for lubricating at least one of the mounting means, a conduit opening in said reservoir for receiving oil from the reservoir as a result of relative motion between the reservoir and the conduit, and means responsive to the oil in the conduit for varying the relative radial position of the first and second rotational axes.
6 more elements
An apparatus for crushing material comprising:
- a supporting structure;
- first and second crushing jaws;
- said first crushing jaw having a crushing surface;
- said second crushing jaw having an essentially conical crushing surface;
- first means for mounting the first crushing jaw on the supporting structure for rotation about a first rotational axis;
- second mounting means for mounting the second crushing jaw on the supporting structure for rotation about a second rotational axis, said crushing surfaces being in confronting relationship and defining an acute angle in axial cross section, said crushing surfaces defining a crushing cavity for receiving material to be crushed;
- said rotational axes being essentially parallel and radially spaced whereby rotation of the crushing jaws about their respective rotational axes crushes the material in the crushing cavity;
- and
- means responsive to the rotation of at least one of the crushing jaws for varying the relative radial position of the first and second rotational axes.
6 more elements
Dependencies are inferred from the claim text.