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Patent Searching and Data


Title:
A DOUBLE IMPACT HAMMER
Document Type and Number:
WIPO Patent Application WO/2008/049325
Kind Code:
A1
Abstract:
A double impact hammer comprises a hammer head (A1-A12) and a hammer handle (D1-D12). The hammer head contains a sealed and movable block (B1-B12). It has many advantages, such as improved hammering effect, being more accurate, reduced or eliminated vibration resulted from counteraction, simple structure, same shape with the ordinary hammer after resetting of the block. It can be used for striking tools like hack, handle axe, axe, tennis racket, golf pole, and so on.

Inventors:
CORONA FRANCO DANTE ETTORE (CN)
Application Number:
CN2007/002993
Publication Date:
May 02, 2008
Filing Date:
October 19, 2007
Export Citation:
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Assignee:
YI JAE HYUNG (CN)
CORONA FRANCO DANTE ETTORE (CN)
International Classes:
B25D1/02; A01B1/06; A63B9/00; B26B23/00
Foreign References:
US4831901A1989-05-23
CN2049175U1989-12-13
US4697481A1987-10-06
JP2005199408A2005-07-28
GB1238652A1971-07-07
DE2757316B11978-12-07
CH584093A51977-01-31
Attorney, Agent or Firm:
SHANGHAI EAST ASIA PATENT & TRADEMARK AGENCY CO., LTD. (Dong Mei, 4F/A No.3, Lane 672 Changle Road Shanghai 0, 200040, CN)
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