Dispenser for liner-wound tape

• US 4,336,097 A
• Filed: 10/23/1980
• Issued: 06/22/1982
• Est. Priority Date: 10/23/1980
• Status: Expired due to Term

• Current Assignee: Minnesota Mining and Manufacturing Co (3M Company)
• Original Assignee: Minnesota Mining and Manufacturing Co (3M Company)
• Inventors: Ahlberg, Carl S., Van Kampen, Craig L.
• Primary Examiner(s): Wityshyn, Michael G.
• Application Number:
  US06/199,701
• Time in Patent Office: 607 Days
• Field of Search: 156/523, 156/527, 156/574, 156/577, 156/579, 156/584, 221/73
• US Class Current: 156/527
• CPC Class Codes: B65H 35/0033 and affixing it to a surface B65H35/004 takes precedence
• CPC Class Codes: B65H 37/007 Applicators for applying coatings, e.g. correction, colour or adhesive coatings
• CPC Class Codes: Y10T 156/1365 Fixed cutter
• 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 156/1983 Poking delaminating means

Abstract

A hand held dispenser for liner wound adhesive tape having walls that define a first cavity for storing a supply roll of liner wound tape, a second cavity with an inner wall surface which causes liner pushed into the second cavity to wind into a coil, an opening through which liner tape may be withdrawn from the dispenser, and path means for connecting the first cavity and the opening adapted to guide the tape being withdrawn through the opening, for connecting the cavities to guide the liner from the first cavity into the second cavity, and for separating the liner from the tape being withdrawn so that tape being withdrawn will propel the liner along the path means and into a coil in the second cavity.

Claims

1. A hand held dispenser by which lengths of pressure-sensitive adhesive coated tape may be withdrawn from a supply roll of said tape convolutely wound with a release liner between its coils, said dispenser comprising walls defining:

a first cavity adapted for storing said supply roll;

a second cavity adapted for storing said liner, said second cavity being partially defined by an inner wall surface adapted to direct liner pushed into said second cavity to wind into a coil;

a path connecting said cavities, said path being adapted for passage of said tape and liner out of said first cavity, and for passage of said liner into said second cavity; and

an opening along said path through which opening said tape may be withdrawn from said dispenser, said walls defining said opening having a separating edge transverse of said path adjacent said first cavity around which edge tape may be peeled away from the liner as the tape is withdrawn from said dispenser, so that withdrawing tape from said opening will propel said liner along said path and into a coil in said second cavity.

2. A dispenser according to claim 1, wherein said walls further define a tape supporting surface projecting away from said path on the side of said opening opposite said separating edge, said supporting surface being adapted to direct the portion of tape projecting through said opening away from said path when said tape is not being withdrawn from said dispenser.

3. A dispenser according to claim 1 or claim 2 wherein said dispenser further includes means for affording the manual application of tension to said tape as it is being withdrawn from said dispenser.

4. A dispenser according to claim 3, wherein said means for affording the manual application of tension comprises a gap defined by said walls along said path between said first cavity and said opening affording manual engagement to press said tape against the opposite wall defining said path as tape is withdrawn from said dispenser.

5. A dispenser according to claim 1 or claim 2 wherein said dispenser further includes means for cutting said tape when a desired length has been withdrawn from said dispenser.

6. A dispenser according to claim 5 wherein said walls include two parallel side walls having opposite surfaces defining opposed end surfaces of said cavities and opposed edge surfaces of said path, and said cutting means comprises outwardly projecting parts of said side walls adjacent said opening positioned to afford passage of the tape between the projecting parts after said tape has passed through said opening, and a blade with a concave cutting edge disposed perpendicularly between the opposed surfaces of said projecting parts, such that tape is severed transversely from its opposite outside edges progressively towards its center as the blade is moved into engagement with said tape.

7. A dispenser according to claim 2 additionally including:

means for affording the manual application of tension to said tape as it is withdrawn from said dispenser; and

means for cutting said tape when a desired length has been withdrawn from said dispenser.

8. A dispenser according to claim 1 wherein said dispenser further includes means for pressing said tape against a surface after said tape is withdrawn through said opening.

9. A dispenser according to claim 8 wherein said means for pressing said tape comprises an outer arcuate surface defined by said walls adjacent said opening.

10. A dispenser according to claim 1 additionally including:

means for pressing said tape against a surface as said tape is withdrawn through said opening; and

means for cutting said tape when a desired length has been withdrawn from said dispenser.

11. A dispenser according to claim 1 wherein said inner wall surface adapted to direct liner pushed into said second cavity is arcuate.

12. A hand-held dispenser by which lengths of pressure-sensitive adhesive coated tape may be withdrawn from a supply roll of said tape convolutely wound with a release liner between its coils, said dispenser comprising walls defining:

a first cavity adapted for storing said supply roll;

a second cavity adapted for storing said liner, said second cavity being partially defined by an inner wall surface adapted to direct liner pushed into said second cavity to wind into a coil;

a tape outlet opening; and

path means for connecting said first cavity and said outlet opening adapted to guide tape being withdrawn from said dispenser through said opening, for connecting said cavities to guide said liner from said first cavity into said second cavity, and for peeling tape being withdrawn through said opening from said liner about an edge so that tape being withdrawn from said opening will propel said liner along said path means and into a coil in said second cavity.

13. A dispenser according to claim 12 wherein said dispenser further includes means for cutting said tape when a desired length has been withdrawn from said dispenser.

14. A dispenser according to claim 13 wherein said dispenser further includes means for cutting said tape when a desired length has been withdrawn from said dispenser, said walls include two parallel side walls having opposite surfaces defining opposed end surfaces of said cavities and opposed edge surfaces of said path, and said means for cutting comprises outwardly projecting parts of said side walls adjacent said opening positioned to afford passage of the tape between the projecting portions after said tape has passed through said opening, and a blade with a cutting edge disposed perpendicularly between the opposed surfaces of said projecting parts positioned to be moved into cutting engagement with tape extending from said outlet opening.

15. A dispenser according to claim 12 wherein said walls include two parallel generally teardrop shaped side walls having opposed generally pointed ends, portions and opposite surfaces defining opposed end surfaces of said cavities and opposed edge surfaces of said path means, said first cavity and said outlet opening are located adjacent said opposed generally pointed end portion and said second cavity is substantially larger than said first cavity and located at the end of said dispenser opposite said generally pointed end portions.