| Patent Number |
Title Of Patent |
Date Issued |
| 4754955 |
Air cushion snubber apparatus |
July 5, 1988 |
| An improved snubber apparatus for an air cushion within a forming press is provided. A floating piston is mounted within the air cushion and defines a snubbing chamber. As the air cushion returns to its top stroke position after yieldably deforming to cushion a member within the forming |
| 4562719 |
Method for drawing heavy wall shells with a multi-step inside edge |
January 7, 1986 |
| A forming machine (10) is provided for forming a finished part (12) from a flat blank (14). Draw stations (18-24) are provided to initially form the intermediate part. Each draw station includes a punch (44, 62, 66, 70') and a draw die (48, 64, 68, 72). Each punch defines a shoulder alon |
| 4559802 |
Method for drawing heavy wall shells |
December 24, 1985 |
| A forming machine (10) is provided for forming a finished part (12) from a flat blank (14). Draw stations (18-24) are provided to initially form the intermediate part. Each draw station includes a punch (44, 62, 66, 70) and a draw die (48, 64, 68, 72). Each punch defines a shoulder along |
| 4527413 |
Apparatus for drawing heavy wall shells with a multi-step inside edge |
July 9, 1985 |
| A forming machine (10) is provided for forming a finished part (12) from a flat blank (14). Draw stations (18-24) are provided to initially form the intermediate part. Each draw station includes a punch (44, 62, 66, 70') and a draw die (48, 64, 68, 72). Each punch defines a shoulder alon |
| 4455932 |
Hydraulic cylinder apparatus |
June 26, 1984 |
| An improved hydraulic press having adjustable preloading or prestressing means on the cylinder body to compensate for, and neutralize, any deflection or deformation of the cylinder body under the hydraulic pressures at which the press operates. The press is designed to operate at zer |
| 4211098 |
Solid state control system for mechanical press |
July 8, 1980 |
| The application discloses a control system for a mechanical press in which two separate control circuits must simultaneously produce control signals to operate the ram through its ram cycle. If either of the control circuits produces a spurious output or intermediate signal or fails to |
| 4194606 |
Low inertia clutch and brake system having safety operation features |
March 25, 1980 |
| The specification discloses a clutch and brake system wherein low and high speed clutch assemblies are mounted about a rotatable shaft. A brake assembly is disposed between the low and high speed clutch assemblies and includes friction surfaces mounted about the shaft. The brake assembly |
| 4138904 |
Link drive mechanism for mechanical presses |
February 13, 1979 |
| A link drive mechanism for vertically moving the slide of a mechanical press comprises a power driven eccentric unit carried by a horizontal shaft arranged substantially vertically above the connecting means for the slide and having first and second adjacent eccentrics, a first eccentric |
| 4095523 |
Brake assembly for mechanical presses |
June 20, 1978 |
| A brake assembly for large mechanical presses of the type which employ large gears and operate at relatively high speeds. The brake assembly is especially adapted to reduce noises emanating from the brake housing of such presses due to sudden shocks and stresses placed on the mechanical |
| 4095522 |
Sound abatement device for mechanical presses |
June 20, 1978 |
| A sound abatement device for large mechanical presses of the type which employ large gears and operate at relatively high speeds. The device is especially adapted to reduce noises emanating from the enclosed crown of such presses where the press gearing, drive means and bearings are |
| 4051933 |
Low inertia clutch and brake system |
October 4, 1977 |
| The specification discloses a low inertia clutch and brake system which includes a rotatable shaft and high speed and low speed clutch assemblies spaced apart along the shaft. A brake assembly is disposed between the high and low clutch assemblies and includes a stationary housing enclos |
| 4050557 |
Two-speed transmission having enclosed flywheel |
September 27, 1977 |
| The specification discloses a transmission system for a press. A rotatable shaft is mounted within an oil lubrication housing and a flywheel is rotatably mounted in the housing about the shaft. A shaft extends through the oil housing for transmitting rotation to the flywheel within the o |
| 4006806 |
Two-speed clutch and brake system |
February 8, 1977 |
| High and low speed clutch assemblies are spaced apart along a rotatable shaft. Each of the clutch assemblies includes a plurality of annular friction plates which may be engaged by movement of annular pistons. A brake assembly is mounted between the clutch assemblies and includes fri |
| 3969918 |
Method and apparatus for blanking coil stock for transfer presses |
July 20, 1976 |
| A method and apparatus are provided for blanking from coil stock blanks to be supplied to and formed by a transfer press having a transfer feed line through the transfer press along which the blanks are fed. The coil stock is fed along a coil stock feed line which is below the transfer f |
| 3931727 |
Method and system for detecting brake wear in a metal forming machine |
January 13, 1976 |
| The specification discloses a method and system for detecting brake wear in a metal forming machine having a ram operable by a rotative drive and further having a brake for stopping the ram. The amount of rotation of the drive for the machine is determined from the time of energization o |
