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US 7,513,495 B2Granted
Separator
AssigneeHewlett-Packard Development Company, L.P.
InventorJiangxiao Mo
Life of this patent
Estimating the term…
Abstract
Various embodiments of a separator are disclosed.
Claims23
A separator comprising:
- a first surface configured to engage edges of sheets extending parallel to a media support surface and having a first coefficient of friction with the edges of the sheets;
- a second surface configured to engage edges of sheets that extend nonparallel to a media support surface while being driven by a pick device, wherein the second surface has a second greater coefficient of friction with the edges of the sheets, wherein the second surface includes surface irregularities comprising teeth having rake angles, the teeth including a first tooth having a first negative rake angle and a second tooth having a second larger negative rake angle, wherein the first surface and the second surface are inclined;
- and
- a ramp between the first surface and the second surface and rising above the teeth.
1 more element
An apparatus comprising:
- a first surface configured to engage the edges of sheets in a stack prior to movement by a pick device;
- and
- a second surface configured to engage the edges of the sheets during movement by the pick device, wherein the second surface includes surface irregularities comprising teeth, wherein the teeth include a first tooth having a first negative rake angle and a second tooth having a second larger negative rake angle and wherein the first tooth and the second tooth alternately repeat along the second surface.
An apparatus comprising:
- a media support surface configured to support a stack of sheets during picking from the stack of sheets;
- and
- a separator comprising an inclined surface rising above an entirety of the media support surface and having a height so as to rise above a top most sheet of the stack of sheets, the inclined surface having teeth configured to engage the leading edge of a sheet being bent by a pick device, wherein the teeth include a first tooth having a first rake angle an a second tooth having a second rake angle.
A method comprising:
- engaging all leading edges of sheets in a stack extending parallel to a media support surface with a first surface along a first portion of an incline rising above an entirety of the media support surface and having a height so as to rise above a top most sheet of the stack of sheets, the first surface having a first coefficient of friction with the leading edges of the sheets;
- and
- engaging the leading edges of the sheets after the sheets have been moved in a direction away from the media support surface up the incline with a second surface along a second higher portion of the incline having a second greater coefficient of friction with the leading edges of the sheets.
An apparatus comprising:
- a first surface configured to engage the edges of sheets in a stack prior to movement by a pick device;
- a second surface configured to engage the edges of the sheets during movement by the pick device, wherein the second surface is rougher than the first surface and includes surface irregularities comprising teeth;
- and
- a ramp between the first surface and at the second surface, wherein the ramp has a height greater than a height of the teeth.
1 more element
Dependencies are inferred from the claim text.