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.
In order to facilitate repeatable tracking of magnetic tape over the head of a tape drive, the following means of compliant tape guiding is proposed.
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
70% of the total text.
Page 1 of 2
Compliant Cleaner Blade Tape Guide
In order to facilitate repeatable tracking of magnetic tape over the head of a
tape drive, the following means of compliant tape guiding is proposed.
In Fig. 1, the use of compliant tape guiding within the confines of a scraper-
style cleaner blade is shown. Weighted buttons (10) exert a guiding force on the
edge of the tape (20) through the action of gravity. These weighted buttons are
made resistant to the wearing action of the magnetic tape by being made out of
either a solid alumina ceramic of a small grain size or stainless steel tipped with a
pad of this same ceramic. The portion of the ceramic coming in contact with the
tape is then highly polished to prevent the generation of tape vibrations.
One or more of these weighted buttons fit between the two scrapers (30) of
each cleaner blade (31). The edge load induced by these weighted buttons
pushes the tape down against the reference datum (11) or lower guide of each
cleaner blade. This reference datum is made out of the same wear-resistant
ceramic used in the weighted buttons. There are two of these guide assemblies,
one on each side of the head (40), to maximize control of the tape as it passes
over the head.
In Fig. 1, the weighted buttons are free to move vertically in their holders (12)
so that the loading on the edge of tape is not affected by variations in the width of
When tape is not present, the guiding surface of each of the weighted buttons
rests just s...