The following operators can be used to better focus your queries.
( ) , AND, OR, NOT, W/#
? single char wildcard, not at start
* multi char wildcard, not at start
(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*
This guide provides a more detailed description of the syntax that is supported along with examples.
This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.
Concept Search - What can I type?
For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.
Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.
Shown and described is a device which provides a compact modular picker separator for sheet feed systems which may be driven directly from a motor shaft or other external means.
English (United States)
This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately
71% of the total text.
Page 1 of 2
Roll Wave Separator
Shown and described is a device which provides a compact modular picker
separator for sheet feed systems which may be driven directly from a motor shaft
or other external means.
In Fig. 1, roller 1 is rotatably mounted on drive arm 2 which is hinged about
pin 3 which is attached to disc 4. Disc 4 is drivingly attached to driven shaft 5.
Arm 2 is biased against roller 6 by spring roller 7. Wheel 8 spaces roller 1 from
the paper stack. It is roller 1 which actually imparts movement to the stack. As
disc 4 rotates driven by drive means 5, roller 1 impacts the top sheet of the paper
stack, initiating a wave. Spring 7 supplies the required normal load when arm 2
no longer contacts roller 6.
Fig. 2 illustrates the positions of roller 1 as disc 4 rotates in 90 degrees
increments. As can be seen during the stroke from position "B" to position "C",
the normal force exerted by spring 7 decreases the load on wheel 8, thereby
enhancing top sheet feeding. Position "C" of disc 4 occurs after 180 degrees of
rotation from the position shown in Fig. 1. At this point, roller 1 is at its maximum
limit of stroke. There is a gap between arm 2 and roller 6, from position "B" to
position "C", and spring 7 provides normal force to the stack. When disc 4
rotates to its 270 degrees position shown in position "D" arm 2 again comes into
contact with roller 6, thereby lifting roller 1 from the paper stack. Continued
rotation restores the system to position "A", as shown i...