# US 7,461,457 B2 · Precision corner post cutter

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- Number: US 7,461,457 B2
- Document ID: US7461457B2
- Status: Granted
- Kind: B2
- Application number: 11/303,775
- Filed: 2005-12-16
- Published: 2007-06-21
- Granted: 2008-12-09
- Earliest claimed: 2005-12-16
- Assignees: International Business Machines Corporation
- Inventors: Ivan Neil Liverman; Robert Tucker Sanders; Eric Allen Stegner; Robert William Stegner
- Web page: https://patentgrep.com/patent/US7461457B2

## CPC

- B26D 1/08: of the guillotine type
- B26D 5/12: Fluid-pressure means
- B26D 7/22: Safety devices specially adapted for cutting machines (safety devices in general F16P)
- B26D 2001/0033: {assembled from multiple blades}
- B26D 2001/006: {the cutting blade having a special shape, e.g. a special outline, serrations}
- B26D 2001/0066: {having shearing means, e.g. shearing blades, abutting blades}
- Y10T 83/04: Processes
- Y10T 83/7593: Work-stop abutment
- B26D: CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING (for growing crops or plants A01D, A01G; for fodder or straw A01F; for bulk butter A01J; for dough A21C; slaughtering A22B; for tobacco, cigars or cigarettes A24; marking-out, perforating or making buttonholes A41H25/00; manufacturing footwear A43D; brushmaking A46D; surgery A61B; disintegrating, mincing or shredding in general B02C; cutting wire, making pins or nails B21F, B21G; of the kind used formetal B23; cutting by abrasive fluid jets B24C5/02; hand-held cutting tools B26B; perforating, cutting-out, stamping-out or punching, or severing by means other than cutting B26F; for wood B27; for stone B28D; working of plastics or substances in a plastic state B29; making boxes, cartons, envelopes or bags, of paper or similarly worked materials, e.g. metal foil, B31B; article or web delivery apparatus incorporating cutting or line-perforating devices B65H35/00; for leather or upholstery B68, C14B; for glass C03B; making matches C06F; for peat C10F; for sugar C13B45/00; for textile materials D06H; civil engineering, building, mining, see Section E; for light guides G02B6/25; cutting processed photographic material G03D15/04)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An apparatus and method are disclosed for cutting a corner post. The apparatus includes a blade disposed within the apparatus. A piston is coupled to the blade for actuating the blade. A trigger switch is coupled to the piston. The piston causes the blade to actuate when the trigger is depressed. The apparatus includes an opening through the apparatus for receiving the corner post through the opening. The blade is actuated to move through the opening and cut through the corner post.

## Claims

### Claim 1

A handheld apparatus for cutting a corner post of a palletized unit, said handheld apparatus comprising:
a support plate;
an L-shaped blade disposed between the support plate and a blade cover, said L-shaped blade utilized for cutting said corner post, wherein said handheld apparatus receives said corner post through an L-shaped opening disposed between an L-shaped guide and the L-shaped blade while the apparatus is lowered onto the top surface of the palletized unit;
said L-shaped guide depending perpendicularly from a bottom surface of said handheld apparatus, wherein said guide includes a notch for mating said guide with said blade after said blade has been actuated;
said blade cover, wherein said blade cover covers said L-shaped blade, wherein said blade cover is attached to a bottom surface of said support plate for protecting an operator and the blade;
a piston coupled to said blade for actuating said blade;
a cylinder, said cylinder for receiving said piston when said piston is not actuating said blade;
a trigger switch coupled to said piston, said piston causing said blade to actuate when said trigger switch is depressed, and wherein said trigger switch is coupled to a handle of said handheld apparatus;
a second switch coupled to the bottom surface of said support plate, wherein said blade is actuated only when said second switch and said trigger switch are depressed simultaneously and when said second switch is pressed against said top surface of said palletized unit; and
said blade being disposed below the L-shaped opening, wherein said blade moves parallel to the opening and perpendicular to the corner post, wherein the corner post is formed of paper and said corner post is L-shaped.

### Claim 2 (depends on 1)

The handheld apparatus according to claim 1, wherein the L-shaped guide is utilized for guiding said corner post through said L-shaped opening.