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US 8,465,111 B2Granted
Print head for use in fused deposition modeling system
AssigneeStratasys, Inc.
InventorsWilliam J. Swanson, J. Samuel Batchelder, Kevin C. Johnson, Timothy A. Hjelsand
Life of this patent
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Abstract
A print head for use in a fused deposition modeling system, the print head includes a cartridge assembly and a liquefier pump assembly retained by the cartridge assembly.
Claims20
A print head for use in a fused deposition modeling system, the print head comprising:
- a housing body;
- a housing cover configured to attach to the housing body to define a cartridge assembly;
- and
- a liquefier pump assembly comprising;
- a drive block retained within the cartridge assembly, and having a first opening and a second opposing opening, the first and second openings being offset y a channel that is configured to receive a filament of a material through the first opening;
- a liquefier coupled to the second opening of the drive block;
- and
- a rotatable shaft, retained within the cartridge assembly, and having a toothed surface extending at least partially within the channel of the drive block, the toothed surface being configured to engage the received filament.
5 more elements
A print head for use in a fused deposition modeling system, the print head comprising:
- a cartridge assembly,
- a liquefier pump assembly comprising:
- a drive block retained within the cartridge assembly, and having a first opening and a second opposing opening, the first and second openings being offset by a channel that is configured to receive a filament of a material through the first opening;
- a liquefier having a first end retained within the cartridge assembly and coupled to the second opening of the drive block, and a second end extending outside of the cartridge assembly;
- and
- a rotatable shaft retained within the cartridge assembly, and having a toothed surface extending at least partially within the channel of the drive block, the toothed surface being configured to engage the received filament.
3 more elements
A print head for use in a fused deposition modeling system, the print head comprising:
- a liquefier pump assembly;
- a housing body;
- a housing cover configured to attach to the housing body to define a cartridge assembly, wherein the liquefier pump assembly is retained by the cartridge assembly;
- a motor operably connected to the liquefier pump assembly;
- a rotatable gear axially connected to the motor;
- and
- at least a portion of a rotary encoder configured to operably measure rotational angles of the rotatable gear.
4 more elements
Dependencies are inferred from the claim text.