Multi-Shell Air-Tight Compartmentalized Casings

Abstract

A molded tool casing of at least two sections for air-tightly encasing a tool is taught. A seal is inserted into a groove molded into the sealing perimeter of one section. A protruding ridge is molded into the sealing perimeter of a second section that is to be joined to the first casing section is adapted for compressing the seal into the groove providing for an air-tight seal for the two joined sections. The casing sections are contoured to provide air-tightly sealable inner-casing compartments for receiving and encasing tool components. Opposing joining perimeters of the air-tightly sealable compartments are adapted with the grooves and protruding ridges, respectively. The tool casing houses a tool, such as a pneumatic tool, such as a central or self-generating vacuum pneumatic tool, or a non-vacuum tool. The tool casing is molded to have a firm inner layer coated by an outer pliant overmolded layer.

1 . A tool casing, comprising:
 at least two casing sections so molded that once positioned about a tool to be encased and joined together at their sealing perimeters with seals therebetween form an air-tight casing for encasing a tool.   
     
     
         2 . The tool casing, as recited in  claim 1 , wherein a groove is molded into the sealing perimeter of one casing section forming a grooved casing section. 
     
     
         3 . The tool casing, as recited in  claim 2 , wherein a seal is inserted into said groove. 
     
     
         4 . The tool casing, as recited in  claim 1 , wherein a protruding ridge molded into the sealing perimeter of a casing section that is to be joined to said grooved casing section is adapted for compressing the seal inserted into said grooved casing section providing for an air-tightly sealed casing when the two sections are joined. 
     
     
         5 . The tool casing, as recited in  claim 1 , wherein each of at least two casing sections is so contoured as to provide air-tightly sealable inner-casing compartments for receiving tool components to be encased. 
     
     
         6 . The tool casing, as recited in  claim 4 , wherein opposing joining perimeters of said air-tightly sealable inner-casing compartments are adapted with said grooves and protruding ridges, respectively. 
     
     
         7 . The tool casing, as recited in  claim 1 , wherein the tool is a pneumatic tool. 
     
     
         8 . The tool casing, as recited in  claim 7 , wherein the pneumatic tool is either a central or self-generating vacuum pneumatic tool. 
     
     
         9 . The tool casing, as recited in  claim 1 , wherein each casing section comprises a molded firm inner layer coated by an outer pliant overmolded layer. 
     
     
         10 . The tool casing, as recited in  claim 9 , wherein said molded firm inner layer comprises a firm plastic layer. 
     
     
         11 . The tool casing, as recited in  claim 9 , wherein said molded outer pliable overmolded layer comprises a urethane overmolded layer. 
     
     
         12 . The tool casing, as recited in  claim 5 , wherein said air-tightly sealable inner-casing compartments further comprise a first air-tightly sealed molded chamber for accommodating an exhaust chamber. 
     
     
         13 . The tool casing, as recited in  claim 12 , wherein said air-tightly sealable inner-casing compartments further comprise a second molded chamber for accommodating an exhaust tube and an inlet tub. 
     
     
         14 . The tool casing, as recited in  claim 13 , wherein said air-tightly sealable inner-casing compartments further comprise a second air-tightly sealed molded chamber for accommodating a vacuum chamber. 
     
     
         15 . The tool casing, as recited in  claim 7 , wherein the pneumatic tool is a non-vacuum pneumatic tool. 
     
     
         16 . A multi-shell casing, comprising:
 an air-tightly sealable, sectional casing comprising:
 a first molded casing section, and 
 a second molded casing section, 
   said first molded casing section molded having seal accepting grooves in its joining perimeter edges,   said second molded casing section molded having protruding ridges in its joining perimeters edges,   at least one seal for positioning within said seal accepting grooves;   said protruding ridges adaptedly shaped for exerting a continuous pressure against said seals once said seals are position within said grooves and said first and second molded casing sections are joined together.   
     
     
         17 . The multi-shell casing, as recited in  claim 16 , wherein each of said first and second sections are so shapedly contoured to form air-tightly sealable inner-casing compartments for receiving components to be encased, where opposing joining perimeters of said air-tightly sealable inner-casing compartments are adapted with said grooves and protruding ridges, respectively, so that when said components to be encased are received with said compartments and said seals are positioned within each perimeter groove, and when said sections are joined an air-tight sealed casing having air-tightly sealed compartments housing said components is provided. 
     
     
         18 . The multi-shell casing, as recited in  claim 17 , wherein said components define a tool. 
     
     
         19 . The multi-shell casing, as recited in  claim 18 , wherein said tool is a pneumatic tool. 
     
     
         20 . A method for making a multi-shell casing, comprising:
 providing for an air-tightly sealable, sectional casing comprising:
 molding a first casing section, 
 molding a second casing section, 
 molding said first molded casing section to have seal accepting grooves in its joining perimeter edges, 
 molding said second molded casing section molded to have protruding ridges in its joining perimeters edges, 
 positioning at least one seal within said seal accepting grooves; 
 adaptedly shaping said protruding ridges for exerting a continuous pressure against said seals once said seals are position within said grooves and said first and second molded casing sections are joined together.