USPatentGranted
B2

Machine tool

Granted 30 Jun 2015 · 2 office actions

Assignee: Hilti

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Attorney: Attorney · Log in to unlock

Inventors: Markus Hartmann, Aaron Wiedner · Examiner: Michelle Lopez · AU 3721 · TC 3700

Life of the patent

7 dated events
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Abstract

The machine tool according to the with a pneumatic hammer mechanism comprises a motorized exciter, a guiding tube, and a piston-shaped beater. The piston-shaped beater is guided by an interior surface of the guiding tube along an operating axis and with the exciter encloses an air spring in a guiding tube. The beater shows a cup-shaped basic body with an open hollow space facing the exciter and an inset filling the hollow space. The basic body is made from a first material with a first density and the insert is made from a material with a second density, which is lower than the first density.

Claims

5 · 1 independent · depth 2
12345
5 granted claims

Classifications

3 codes
IPC · International Patent Classification
Section B — Performing operations; transporting
  • B25D17/06
  • B25D17/24
  • B25D11/06

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File wrapper

⤢ drag to zoomJul 2012Jan 2013Jul 2013Jan 2014Jul 2014Jan 2015Jul 2015USPTOApplicantNon-final rejectionResponse after non-final
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Pendency
3.1 y
1,145 days filing → grant
Office actions
1
non-final + final
Responses
1
no RCE
Examiner
Michelle Lopez
art unit 3721 · TC 3700
Citations: 11 back · 0 forward

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Term & fees

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Priority chain

1 priority documents
›Priority documents — 1
TypeDocumentDate
related publicationUS 20120298393 A129 Nov 2012

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Citations

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