Document folder

• US 5,639,016 A
• Filed: 06/24/1996
• Issued: 06/17/1997
• Est. Priority Date: 06/24/1996
• Status: Expired due to Fees

• Current Assignee: Chin-Lien Ho
• Original Assignee: Chin-Lien Ho
• Inventors: Ho, Chin-Lien
• Primary Examiner(s): Pascua, Jes F.
• Application Number:
  US08/669,012
• Time in Patent Office: 358 Days
• Field of Search: 229/67.1, 229/67.4, 24/67.11
• US Class Current: 229/67.4
• CPC Class Codes: B42F 9/007 with sliding clamping means
• CPC Class Codes: Y10T 24/206 Mounted on support means

Abstract

A document folder includes upper and lower sheets, and a C-shaped clamp. The upper and lower sheets has a common edge. The lower sheet has an opening formed adjacent to the common edge. The opening has opposed first and second edges which are parallel with the common edge. The lower sheet further has a plate member which has an edge fixedly connected to the internal face of the lower sheet in order to cover the opening. The C-shaped clamp has upper and lower clamping plates, and a curved portion. The lower clamping plate has a tapered projection which abuts the plate member. The C-shaped clamp is movable between a clamping position, where the curved portion of the C-shaped clamp abuts the common edge and a releasing position, where the shoulder portion of the projection abuts the first edge of the opening, preventing the C-shaped clamp from being separated from the upper and lower sheets.

Claims

1. A document folder comprising:

upper and lower sheets having a common edge which interconnects said upper and lower sheets, said lower sheet having an opening formed adjacent to said common edge of said upper and lower sheets, said opening having opposed first and second edges which are parallel with said common edge, said first edge of said opening being adjacent to said common edge while said second edge of said opening is distal from said common edge, said lower sheet further having an internal face and a plate member connected to said internal face of said lower sheet, said plate member having a first edge which is fixedly connected adjacent to said second edge of said opening, and a second edge which is opposed to said first edge of said plate member and which extends adjacent to said common edge so as to cover said opening; and

a C-shaped clamp having upper and lower clamping plates clamping respectively onto said upper sheet and said plate member through said opening, and a curved portion which interconnects said upper and lower clamping plates, said lower clamping plate having a distal edge and a tapered projection which projects from said distal edge and abuts said plate member, said projection having a shoulder portion facing said curved portion, said C-shaped clamp being movable between a clamping position, where said curved portion abuts said common edge and a releasing position, where said shoulder portion of said projection abuts said first edge of said opening, preventing said C-shaped clamp from being separated from said upper and lower sheets.

2. A document folder as claimed in claim 1, wherein said first edge of said opening has two ends, said lower sheet having two curved slits formed therein, each of said curved slits extending from a respective one of said ends of said first edge of opening and having a terminating end which is distal from said common edge.

3. A document folder as claimed in claim 1, wherein said upper clamping plate of said C-shaped clamp has an upper face, and a ramp inclined downwardly from an intermediate portion of said upper face to a distal edge of said upper clamping plate.