Acoustical panel

• US 3,077,426 A
• Filed: 05/24/1957
• Issued: 02/12/1963
• Est. Priority Date: 05/24/1957
• Status: Expired due to Term

• Current Assignee: Lowell B. Johnston
• Original Assignee: Lowell B. Johnston
• Inventors: Johnston, Lowell B.
• Application Number:
  US03/661,509
• Time in Patent Office: 2,090 Days
• US Class Current: 181/286
• CPC Class Codes: B29C 2043/022 having locally depressed lines, e.g. hinges single grooves B29C37/0057; folding lines B29C53/06; parting line of the mould parts B29C33/005
• CPC Class Codes: B29C 2043/023 having a plurality of grooves
• CPC Class Codes: B29C 43/021 characterised by the shape of the surface
• CPC Class Codes: B29C 43/40 with means for cutting the article
• CPC Class Codes: B29K 2105/06 containing reinforcements, fillers or inserts
• CPC Class Codes: B29L 2031/3041 Trim panels
• CPC Class Codes: B60R 13/0225 self supporting head liners
• CPC Class Codes: B60R 13/0815 Acoustic or thermal insulation of passenger compartments wall or roof liners integrating the insulating function B60R13/02; insulating floor mats or carpets B60N3/04
• CPC Class Codes: B60R 13/083 for fire walls or floors
• CPC Class Codes: E04B 1/541 Joints substantially without separate connecting elements, e.g. jointing by inter-engagement
• CPC Class Codes: E04B 1/6179 with protrusions and recesses on each frontal surface
• CPC Class Codes: E04B 1/86 slab-shaped
• CPC Class Codes: E04B 2001/8457 Solid slabs or blocks
• CPC Class Codes: E04B 9/001 characterised by provisions for heat or sound insulation
• CPC Class Codes: E04B 9/0435 having connection means at the edges
• CPC Class Codes: E04B 9/045 being laminated
• CPC Class Codes: E04B 9/0464 having irregularities on the faces, e.g. holes, grooves

Claims

1. A COMPRESSED RESIN BONDED, FIBROUS GLASS PANEL HAVING A TEXTURED FACING SIDE AND A REAR SIDE, AND LAYER OF FIBROUS GLASS ON THE FACING SIDE BEING FORMED OF CLOSELY GROUPED FLATTENED CLUMPS OR BALLS OF FIBROUS GLASS WITH