Hand held masking machine

• US 5,037,501 A
• Filed: 02/28/1990
• Issued: 08/06/1991
• Est. Priority Date: 02/28/1990
• Status: Expired due to Term

• Current Assignee: Minnesota Mining and Manufacturing Co (3M Company)
• Original Assignee: Minnesota Mining and Manufacturing Co (3M Company)
• Inventors: Lawson, Richard A.
• Primary Examiner(s): Wityshyn, Michael
• Application Number:
  US07/486,366
• Time in Patent Office: 524 Days
• Field of Search: 156/527, 156/577, 156/579, 156/554, 225/34, 225/48, 225/49
• US Class Current: 156/527
• CPC Class Codes: B65H 35/004 simultaneously with a second roll, e.g. masking tape
• CPC Class Codes: Y10T 156/1365 Fixed cutter
• CPC Class Codes: Y10T 156/1739 Webs of different width, longitudinally aligned
• CPC Class Codes: Y10T 156/1795 Implement carried web supply
• CPC Class Codes: Y10T 156/18 Surface bonding means and/or assembly means with handle or handgrip
• CPC Class Codes: Y10T 225/232 Plural supply sources

Abstract

A hand held and manually operable masking machine having a sheet material housing on which is rotatably supported a paper roll and a pair of adhesive tape rolls. One tape roll dispenses adhesive tape to overlap a portion of one edge of the paper roll with the other tape roll dispensing adhesive tape to overlap a portion of the opposite edge of the paper roll. The front edge of the housing is formed into a cutting blade which is to be manually used to cut through the paper roll once the desired extended length has been obtained with this cutting also occurring through the tape that is secured to the side edges to the paper roll.

Claims

1. A handle held masking machine comprising a housing having a front edge;

masking material mounting means on said housing adapted for mounting a roll of masking material having spaced lateral edges for rotation about a masking material axis so that masking material from the roll can be conducted past the front edge of the housing;

a handle attached to said housing and adapted to be grasped by a person using the masking machine, said handle having opposite ends and a longitudinal center axis between said ends oriented generally transverse to the axis of the roll of masking material;

tape roll mounting means on said housing adapted for mounting first and second rolls of pressure sensitive adhesive coated tape having opposite edges for rotation about tape roll axes generally parallel to said masking material axis with each of said rolls of pressure sensitive adhesive coated tape adjacent a different lateral edge of the roll of masking material and positioned on the side of said masking material mounting means opposite the front edge of said housing, said tape roll mounting means being adapted to position the rolls of pressure sensitive adhesive coated tape along said tape roll axes with a portion of each roll of tape along the adjacent opposite edges of the rolls of pressure sensitive adhesive coated tape aligned with a portion of the roll of masking material along the adjacent lateral edge of the roll of masking material, and with a portion of each roll of tape projecting past the adjacent lateral edge of the roll of masking material, and so that tapes conducted from the rolls of tape past said front edge of said housing will contact and become adhered to masking material being conducted from said roll of masking material with portions of the tapes projecting past the lateral edges of the masking material; and

cutting means along the front edge of said housing adapted for cutting the adhered together masking material and tape, wherein said housing includes a main body section having said front edge, an opposite back edge, a right side edge, a left side edge, and a bottom surface; and

generally parallel flanges attached to said main body section at said right and left side edges and projecting past said bottom surface;

said masking material mounting means is mounted on one of said flanges with said masking material axis extending between said right and left side edges of said main body section to position said roll of masking material located adjacent said bottom surface;

said tape roll mounting means are mounted on said flanges; and

one of said ends of said handle is attached to said main body section along said back edge generally centrally between said right and left side edges, with said handle extending away from said back edge in a position at which the handle can be grasped from any side.

2. A hand held masking machine according to claim 1 wherein said housing is of sheet material, said main body section is substantially planar, and said longitudinal center axis of said handle is disposed at an obtuse angle relative to the plane of said main body section and projects past said bottom surface of said main body section.

3. A hand held masking machine according to claim 1 wherein said housing is of sheet metal, and said main body section and said flanges are substantially planar.

4. A hand held masking machine according to claim 3 wherein said longitudinal center axis of said handle is disposed at an obtuse angle relative to the plane of said main body section and projects said bottom surface of said main body section.

5. A hand held masking machine according to claim 1 wherein said main body section and said flanges are substantially planar, said flanges include a first flange on said left side edge and an opposite second flange on said right side edge aligned with said first flange with said tape roll mounting means being mounted on said first and second flanges, and a third flange on said right side edge on which third flange said masking material mounting means is mounted.

6. A hand held masking machine according to claim 5 wherein said handle includes a planar handle frame portion included in said housing and attached to said main body section along said back edge, and a cover portion around said handle frame portion.