Metal deforming – With means to drive tool – Including pneumatic- or fluid-actuated tool support
Reexamination Certificate
2000-07-28
2002-09-24
Larson, Lowell A. (Department: 3725)
Metal deforming
With means to drive tool
Including pneumatic- or fluid-actuated tool support
C060S477000
Reexamination Certificate
active
06453719
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to hydraulic tools and, more particularly, to a reservoir of a hydraulic tool.
2. Prior Art
U.S. Pat. No. 5,727,417 discloses a portable battery powered crimper having a hydraulic drive assembly with a wobble plate. U.S. Pat. No. 5,472,322 discloses a hydraulic fluid tank with a flexible membrane. There is a desire to shorten the length of hydraulic tools to thereby decrease the weight of the tools.
SUMMARY OF THE INVENTION
In accordance with one embodiment of the present invention, a hydraulically actuated tool is provided comprising a frame; a hydraulic fluid pump connected to the frame; a ram movably connected to the frame and adapted to be moved relative to the frame by hydraulic fluid pumped by the pump; and a hydraulic fluid reservoir connected to the pump. The reservoir is located proximate an exterior portion of the frame along a path of at least about 180° relative to a longitudinal axis of the tool. The reservoir does not extend beyond a rear end of the frame.
In accordance with another embodiment of the present invention, a battery powered hydraulic compression tool is provided comprising a frame, a hydraulic fluid pump on the frame, a hydraulic fluid reservoir connected to the pump, and a ram movably connected to the frame. The improvement comprises the hydraulic fluid reservoir having a general ring shape surrounding a portion of the frame.
In accordance with another embodiment of the present invention, a battery powered hydraulic compression tool is provided comprising a frame, a hydraulic fluid pump on the frame, a hydraulic fluid reservoir connected to the pump, and a ram movably connected to the frame. The improvement comprises the hydraulic fluid reservoir having a general ring shape surrounding the pump.
REFERENCES:
patent: 3030838 (1962-04-01), Klingler
patent: 4342216 (1982-08-01), Gregory
patent: 5272811 (1993-12-01), Armand
patent: 5282378 (1994-02-01), Kimura
patent: 5472322 (1995-12-01), Huet et al.
patent: 5727417 (1998-03-01), Moffatt et al.
patent: 5782128 (1998-07-01), Barjesteh et al.
patent: 5802850 (1998-09-01), Kimura
patent: 2 644 383 (1990-09-01), None
patent: 2 724 422 (1996-03-01), None
Heskey George T.
Lavoie Raymond G.
Steltzer Gordon L.
FCI USA Inc.
Harrington & Smith ,LLP
Larson Lowell A.
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