HOLLOW STRUCTURAL MEMBERS

• US 3,753,326 A
• Filed: 04/26/1971
• Issued: 08/21/1973
• Est. Priority Date: 09/10/1969
• Status: Expired due to Term

• Current Assignee: Cyclopss Corp (The Procter & Gamble Company)
• Original Assignee: Ralph O. Kaufman Sr
• Inventors: Kaufman, Ralph O. Sr.
• Primary Examiner(s): Abbott, Frank L.
• Assistant Examiner(s): Raduazo, Henry E.
• Application Number:
  US05/137,555
• Time in Patent Office: 848 Days
• Field of Search: 52/728-732,632,108
• US Class Current: 52/845
• CPC Class Codes: B21H 7/16 turbine blades; compressor blades; propeller blades
• CPC Class Codes: B23P 15/04 turbine or like blades from several pieces
• CPC Class Codes: E04C 2003/0413 being built up from several parts
• CPC Class Codes: E04C 2003/043 the hollow cross-section comprising at least one enclosed cavity
• CPC Class Codes: E04C 2003/0439 the cross-section comprising open parts and hollow parts
• CPC Class Codes: E04C 2003/0452 H- or I-shaped
• CPC Class Codes: E04C 2003/046 L- or T-shaped
• CPC Class Codes: E04C 2003/0473 U- or C-shaped
• CPC Class Codes: E04C 2003/0482 Z- or S-shaped
• CPC Class Codes: E04C 3/06 with substantially solid, i.e. unapertured, web E04C3/10, E04C3/11 take precedence honeycomb girders E04C3/083
• CPC Class Codes: F01D 5/147 Construction, i.e. structural features, e.g. of weight-saving hollow blades F01D5/148, F01D5/16 and F01D5/20 take precedence; blade shape F01D5/141; blades with cooling or heating channels or cavities F01D5/18; heating, heat-insulating or cooling means on blades F01D5/18
• CPC Class Codes: F01D 5/18 Hollow blades, i.e. blades with cooling or heating channels or cavities structure of hollow blades in general F01D5/147; Heating, heat-insulating or cooling means on blades
• CPC Class Codes: F05D 2240/80 Platforms for stationary or moving blades
• CPC Class Codes: F05D 2240/81 Cooled platforms

Abstract

A hollow structural member comprising at least two connected wrought metal components, each component having a specially formed edge configuration and a plain formed remaining portion. The hollow structural member is formed by connecting the plain formed remaining portion of a first component with the specially formed edge configuration of a second component and connecting the plain formed portion of the second component with the specially formed edge configuration of the first component or a third component, etc., these connections being inward from the outer extremities of the special formed edge configurations and being along a recess in an enlarged mass portion of the special formed edge configuration.

Claims

1. A hollow structural member comprising three connected wrought metal components, each of said components having a specially formed edge configuration including an enlarged mass portion and a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of another component, two of said components having opposing 90* bends, said three components being joined to form a hollow T-shaped structural member, and each adjacent connection being on different faces of the structural member.

2. A hollow structural member comprising two connected wrought metal components, each component having two 90* bends in the same direction, a specially formed edge configuration including an enlarged mass portion with a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of the other component, the two components being joined to form a U-shaped hollow structural member, and each adjacent connection being on different faces of the structural member.

3. A hollow structural member comprising four connected wrought metal components, two of said components each having 90* bends in the same direction, said two components positioned so that said 90* bends are oppositely directed, the remaining two components being straight and connecting to the bent components, each of said components having a specially formed edge configuration including an enlarged mass portion and a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of another component, the four components being joined to form an I-shaped hollow structural member, and each adjacent connection being on different faces of the structural member.