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.
The described actuator is suitable for energizing high performance print hammers such as those which produce fully formed characters on engraved band printers.
English (United States)
This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately
53% of the total text.
Print Hammer Actuator
described actuator is suitable for energizing high
performance print hammers such as those which produce fully formed
characters on engraved band printers.
uses an armature which has only a fraction of the
mass of conventionally designed armatures and is incorporated within
a compact design featuring high operating efficiency and low-cost
sheet- metal fabrication.
illustrate this actuator which is suitable for use
with print hammers having a pushrod to transfer energy from the
magnetic actuator to the print hammer.
shown in Figs. 1 and 2 develops its force and
energy by the energization of a single coil 14 which is wound around
a pair of stator poles 11 comprising an "E" core structure. This "E"
core is formed by combining two "C"-shaped sheet-metal cores 24, 25,
which form the stator poles 11, shown both in Figs. 2 and 4,
providing a relatively short magnetic flux path which passes through
sheet-metal armature 12. Magnetic flux
moves in the direction of the
arrows, as shown in Fig. 2, through the center leg of the "E" core,
around the outer legs, across the outer magnetic air gap, through the
armature and finally across the central magnetic air gap to the
central leg of the "E" core.
is energized from its rest position (against bumper
16 to its actuated position (against stator pole 11).