Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8047901 | Dehider with governor and strengthened blade A dehider includes a pneumatic motor driving a pair of disk blades in opposed cutting oscillations and a governor that controls the speed of the motor. Governor balls, acting as centrifugal weights, spin with the motor and push against an inclined flange on a valve ... | 11/01/2011 |
| 7963829 | Dehider with governor and strengthened blade A dehider includes a pneumatic motor driving a pair of disk blades in opposed cutting oscillations and a governor that controls the speed of the motor. Governor balls, acting as centrifugal weights, spin with the motor and push against an inclined flange on a valve ... | 06/21/2011 |
| 7722448 | Dehider with governor and strengthened blade A dehider includes a pneumatic motor driving a pair of disk blades in opposed cutting oscillations and a governor that controls the speed of the motor. Governor balls, acting as centrifugal weights, spin with the motor and push against an inclined flange on a valve ... | 05/25/2010 |
| 7163453 | Dehider with dual counterbalance drive system A counterbalanced handheld dehider includes a pair of cutting disks driven in opposed cutting oscillations by a motor through an eccentric shaft turned by the motor. Two pushrods, one for each cutting disk, are connected between the eccentric shaft and respective cu... | 01/16/2007 |
| 6805696 | Spinal cord removal tool with adjustable blades A spinal cord removal tool for removing a spinal cord and spinal cord membrane from a carcass includes a spinning blade disk having multiple removal blades mounted around its perimeter, each removal blade having a forward facing cutting edge that can enter the spina... | 10/19/2004 |
| 6648746 | Toe web cutter with stationary blade unit A toe web cutter has a pivoted inner hooked blade and stationary outer blades adjacent to the sides and end of the inner blade. Cutting edges on the adjacent blades produce an elongated cut to remove the web from between the toes of a carcass. The station... | 11/18/2003 |
| 6511483 | Spinal cord removal tool A spinal cord removal tool for removing a spinal cord and spinal cord membrane from a carcass includes a spinning blade disk having multiple removal blades mounted around its perimeter, each removal blade having a forward facing cutting edge that can ente... | 01/28/2003 |
| 6468146 | Carcass alignment system for carcass splitter A carcass alignment system for holding and positioning a carcass for splitting by an automated saw while the carcass is suspended and continuously moving along a carcass rail includes back rollers for contacting the back and upper sides of the carcass, gu... | 10/22/2002 |
| 6461232 | Toe web cutter with stationary blade unit A toe web cutter has a pivoted inner hooked blade and stationary outer blades adjacent to the sides and end of the inner blade. Cutting edges on the adjacent blades produce an elongated cut to remove the web from between the toes of a carcass. The station... | 10/08/2002 |
| 6126536 | Automated saw for splitting carcasses An automated saw for high speed splitting of suspended carcasses, such as hog carcasses, through the backbone as the carcasses continuously move along a carcass rail includes a splitting station and a back roller station located on opposite sides of the c... | 10/03/2000 |
| 5997394 | Leaf lard remover A tool for removing leaf lard from a carcass includes a head for mechanically engaging the lard, a reversible driver for rotating the head in a forward direction and in a reverse direction, a trigger connected to operate the reversible driver and begin ro... | 12/07/1999 |
| 5918370 | Hand held power assisted shears A hand held power assisted shears has a piston located in a cylinder formed in a pistol grip body. A trigger controls the position of a hollow shuttle spool rod which slides longitudinally within a hollow piston rod connected between the piston and the bl... | 07/06/1999 |
| 5632670 | Vacuum steam wand for sanitizing a carcass A vacuum steam wand for sanitizing a carcass includes a housing having a handle and a thermally conductive vacuum head with steam passages within that maintain the temperature of the vacuum head above a desired sanitizing temperature. The vacuum head incl... | 05/27/1997 |
| 5514031 | Automated leg shear with bi-directional cutting arm An apparatus for automatically shearing the leg from a carcass moving along a carcass rail includes an arm having a first end pivotally attached to a support structure and a second end attached to a shearing assembly. The arm is pivotally attached to said... | 05/07/1996 |
| 5433659 | Automated leg shear with sterilization station An apparatus for automatically shearing the leg from a carcass moving along a carcass rail includes an arm having a first end pivotally attached to a support structure and a second end attached to a shearing assembly. The arm swings the shearing assembly ... | 07/18/1995 |
| 5421773 | Automatic hock shear with carcass leg positioner A carcass leg shearing apparatus adapted for mounting near a carcass rail. The apparatus includes a carcass leg engager for engaging the carcass legs and positioning the legs within a shearing region such that the carcass legs are sheared at the hock port... | 06/06/1995 |
| 5311664 | Power skinning knife with unidirectional rotating blade A power skinning knife having a single substantially disc shaped blade driven in continuous unidirectional rotary motion with a pair of blade shields on opposite sides of the blade covering most of the blade and exposing only a limited depth arcuate cutti... | 05/17/1994 |
| 5180329 | Automatic foot and hoof shear A device for automatically shearing hooves from a carcass continuously moving along an overhead rail including a frame horizontally slidable on a base and a shearing assembly vertically slidable on the frame. Drivers are provided to move the shearing asse... | 01/19/1993 |
| 5122092 | Power skinning knife with removable drive mechanism and high efficiency pneumatic motor A power skinning knife with a drive mechanism that may be easily removed for cleaning and a high efficiency pneumatic motor. The main drive gear is located on the same side of the pinion gear as the drive mechanism cover plate permitting removal of the dr... | 06/16/1992 |
| 5106336 | Method and device for supporting a suspended animal carcass during hide removal Method and device for supporting a suspended animal carcass during hide removal comprising a leg holder adapted to engage and hold the legs of the carcass and a means for lifting the leg holder relative to the suspension means to raise the carcass and red... | 04/21/1992 |
| 4577407 | Dehorner The invention is a dehorner for removing horns from the skulls of cattle or the like comprising a frame with a cutting side defining a plane and an operator side and having a fixed blade and a reciprocating blade which is projected toward the fixed blade ... | 03/25/1986 |
| 4145811 | Reciprocating saw A reciprocating blade saw wherein the counterbalancing of the drive system includes the provision of two directly opposed and coaxial rams, one attached to the saw blade and the other having a mass equal to the first ram plus the blade, both being attache... | 03/27/1979 |
| 4038721 | Reciprocating blade saw A drive system for a reciprocating blade saw wherein a motor rotates an eccentric which rocks a bell crank to reciprocate the saw blade, the eccentric and the bell crank being associated with masses which rotate and rock 180° out of phase with the eccent... | 08/02/1977 |
| 4027390 | Saw blade A straight saw blade adapted for rapid reciprocation, the blade being tapered in cross-section across a substantial part of its width such that it is thinnest at or near the points of the teeth and substantially thicker throughout the portion adjacent to ... | 06/07/1977 |
