Battery powered hydraulic tool

• US 20040194530A1
• Filed: 04/05/2004
• Published: 10/07/2004
• Est. Priority Date: 02/19/2002
• Status: Active Grant

• Current Assignee: Hubbell, Inc.
• Original Assignee: Armand T. Montminy, Christopher G. Chadbourne, Gordon L. Steltzer, John D. Lefavour
• Inventors: Lefavour, John D., Chadbourne, Christopher G., Steltzer, Gordon L., Montminy, Armand T.
• Granted Patent: US 6,957,560 B2
• Time in Patent Office: Days
• US Class Current: 72/453.16
• CPC Class Codes: B25B 27/10 inserting fittings into hoses
• CPC Class Codes: B25B 27/146 Clip clamping hand tools
• CPC Class Codes: B25F 5/005 Hydraulic driving means
• CPC Class Codes: H01R 43/0427 fluid actuated hand crimping tools
• CPC Class Codes: Y10T 29/53226 Fastening by deformation

Abstract

A battery powered hydraulic tool including a frame; a battery connected to the frame; a motor connected to the frame and adapted to be powered by the battery; and a hydraulic pump connected to the motor by a gear reduction transmission. The motor and gear reduction transmission are adapted to output a torque of the least about 160 oz-in with the gear reduction transmission being adapted to provide a gear reduction of between about 8:1 to about 15:1 or less, and the hydraulic pump being adapted to output at least about 6000 psi of pressure or more.

Claims

1-40. -40. (Canceled).

41. A hand-held battery powered hydraulic tool comprising:

a frame;

a hydraulic pump in the frame;

an electric motor connected to the frame and operably coupled to the hydraulic pump to drive the hydraulic pump, wherein the electric motor is adapted to operate with a nominal voltage that is approximately 16 Volt DC or greater; and

a rechargeable battery connected to the frame and coupled to the electric motor, wherein the battery comprises a voltage of at least about 16 Volts.

42. A hand-held battery powered hydraulic tool as in claim 41 wherein the electric motor is adapted to operate with a nominal voltage that is approximately 16.8 Volt DC.

43. A hand-held battery powered hydraulic tool as in claim 41 wherein the electric motor is adapted to operate with a nominal voltage that is approximately 18 Volt DC and the battery comprises a voltage of about 18 volts.

44. A hand-held battery powered hydraulic tool as in claim 41 wherein the electric motor is adapted to operate with a nominal voltage that is approximately 24 Volt DC and the battery comprises a voltage of about 24 volts.

45. A hand-held battery powered hydraulic tool as in claim 41 further comprising a gear reduction transmission between the pump and the motor.

46. A hand-held battery powered hydraulic tool as in claim 45 wherein the gear reduction transmission is adapted to provide a fixed gear reduction of about 10:

1 to about 15;

1 and the hydraulic pump is adapted to output at least about 6000 psi of pressure.

47. A hand-held battery powered hydraulic tool as in claim 45 wherein torque output of the motor and the gear reduction transmission is at least about 260 oz-in of torque.

48. A hand-held battery powered hydraulic tool as in claim 45 wherein the gear reduction transmission is adapted to provide a gear reduction of at least about 12:

1.

49. A hand-held battery powered hydraulic tool as in claim 45 further comprising a ram movably connected to the frame, the ram being moved by hydraulic pressure from the hydraulic pump, wherein the frame comprises a hydraulic conduit system, and wherein the hydraulic conduit system, the hydraulic pump, the motor and the gear reduction transmission are adapted to move the ram at a speed of at least about 0.007 ft/sec.

50. A hand-held battery powered hydraulic tool as in claim 41 wherein the hydraulic pump is adapted to output at least about 8000 psi of pressure.

51. A battery powered hydraulic tool as in claim 41 wherein the hydraulic pump is adapted to output about 8000-10,000 psi of pressure.

52. A hand-held battery powered hydraulic tool as in claim 41 wherein the hydraulic pump comprises a pump piston with a diameter of less than about 0.35 inch.

53. A hand-held battery powered hydraulic tool as in claim 41 further comprising at least one system for protecting the motor from a current spike by preventing a current draw of more than a predetermined amperage.

54. A hand-held battery powered hydraulic tool as in claim 53 wherein the at least one system for protecting the motor from a current spike comprises two systems.

55. A hand-held battery powered hydraulic tool comprising:

a frame;

a hydraulic pump in the frame;

an electric motor connected to the frame and operably coupled to the hydraulic pump to drive the hydraulic pump, wherein the electric motor is adapted to operate at a nominal voltage of about 18 Volt DC or greater; and

a rechargeable battery connected to the frame and coupled to the electric motor, wherein the battery comprises a voltage of at least about 18 Volts.

56. A hand-held battery powered hydraulic tool as in claim 55 wherein the hydraulic pump comprises a pump piston with a diameter of less than about 0.4 in., wherein the hydraulic pump can generate at least about 6000 psi pressure, and wherein the motor and a gear reduction transmission are adapted to generate at least about 160 oz-in of torque.

57. A hand-held battery powered hydraulic tool as in claim 55 wherein the torque output of the motor and a gear reduction transmission between the motor and the pump is about 270-280 oz-in of torque.

58. A hand-held battery powered hydraulic tool as in claim 55 further comprising a gear reduction transmission between the motor and the pump which is adapted to provide a fixed gear reduction of between about 12:

1 to about 15;

1.

59. A hand-held battery powered hydraulic tool as in claim 55 wherein the hydraulic pump is adapted to output at least 8000 psi of pressure.

60. A hand-held battery powered hydraulic tool as in claim 55 wherein the hydraulic pump is adapted to output about 8000-10,000 psi of pressure.

61. A hand-held battery powered hydraulic tool as in claim 55 further comprising a ram movably connected to the frame, the ram being moved by hydraulic pressure from the hydraulic pump, and wherein the hydraulic fluid conduit, the hydraulic pump, the motor and a gear reduction transmission are adapted to move the ram at a speed of about 0.007 ft/sec or greater.

62. A hand-held battery powered hydraulic tool as in claim 55 further comprising at least one system for protecting the motor from a current spike by preventing a current draw of more than a predetermined amperage.

63. A hand-held battery powered hydraulic tool as in claim 62 wherein the at least one system for protecting the motor from a current spike comprises two systems.

64. A hand-held battery powered hydraulic tool comprising:

a frame;

a hydraulic pump in the frame;

an electric motor connected to the frame and operably coupled to the hydraulic pump to drive the hydraulic pump, wherein the electric motor is adapted to operate at a nominal voltage of at least 24 Volt DC ; and

a rechargeable battery connected to the frame and coupled to the electric motor, wherein the battery comprises a voltage of at least about 24 Volts.

65. A hand-held battery powered hydraulic tool as in claim 64 further comprising a gear reduction transmission between the pump and the motor.

66. A hand-held battery powered hydraulic tool as in claim 65 wherein the gear reduction transmission being adapted to provide a fixed gear reduction of about 10:

1 to about 15;

1 and the hydraulic pump being adapted to output at least about 6000 psi of pressure.

67. A hand-held battery powered hydraulic tool as in claim 65 wherein torque output of the motor and the gear reduction transmission is at least about 260 oz-in of torque.

68. A hand-held battery powered hydraulic tool as in claim 65 wherein the gear reduction transmission is adapted to provide a fixed gear reduction of at least about 12:

1.

69. A hand-held battery powered hydraulic tool as in claim 65 further comprising a ram movably connected to the frame, the ram being moved by hydraulic pressure from the hydraulic pump, wherein the frame comprises a hydraulic conduit system, and wherein the hydraulic conduit system, the hydraulic pump, the motor and the gear reduction transmission are adapted to move the ram at a speed of at least about 0.007 ft/sec.

70. A hand-held battery powered hydraulic tool as in claim 64 wherein the hydraulic pump is adapted to output at least about 8000 psi of pressure.

71. A battery powered hydraulic tool as in claim 64 wherein the hydraulic pump is adapted to output about 8000-10,000 psi of pressure.

72. A hand-held battery powered hydraulic tool as in claim 64 wherein the hydraulic pump comprises a pump piston with a diameter of less than about 0.35 inch.

73. A hand-held battery powered hydraulic tool as in claim 64 further comprising at least one system for protecting the motor from a current spike by preventing a current draw of more than a predetermined amperage.

74. A hand-held battery powered hydraulic tool as in claim 73 wherein the at least one system for protecting the motor from a current spike comprises two systems.