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US 5,853,442 AGranted
Bolt connector assembly having retainer ring construction and reduced diameter shank portion
AssigneeDonaldson Company, Inc.
InventorsJames R. Glen, Ted A. Folstad
Life of this patent
Estimating the term…
Abstract
A connector assembly is provided. The connector assembly is particularly well adapted for connection of a tube top flange to a tube sheet, in a bag house or filter assembly. The connector assembly includes a bolt having a retainer construction or skirt thereon, to retain the bolt in place. The bolt has shank sections of different cross-sectional size, to advantage.
Claims14
An assembly comprising:
- (a) a tube top flange having an outer plate with at least one bolt hole therein;
- (b) a connector assembly comprising a bolt and a retainer ring;
- (i) said bolt having:
- a head;
- a first shank section;
- a threaded section;
- and a second shank section;
- (A) said head having a first outer dimension;
- (B) said first shank section being adjacent said head and having a non-threaded outer surface;
- said first shank section having an outer dimension less than said first outer dimension;
- (C) said threaded section being adjacent said first shank section;
- said threaded section having an outer diameter;
- (D) a second shank section adjacent said threaded section;
- said second shank section having an outer dimension no greater than 90% of said outer diameter of said threaded section;
- and
- (D) said bolt projecting through a bolt hole in said tube top flange;
- (ii) said retainer ring being secured to said first shank section on an opposite side of said tube top flange from said bolt head;
- (A) said ring being spaced from said bolt head and said top tube flange a distance such that when said bolt head abuts said tube top flange, said ring is spaced from said top flange by a gap of 0.27-0.31 inches;
- (c) a tube sheet having at least one internally threaded riv-nut therein;
- (i) said tube top flange being secured to said tube sheet by threaded engagement between said bolt and said riv-nut;
- and
- (ii) said internally threaded riv-nut includes an internally threaded section which extends to a distance away from said bolt head, during assembly, no greater than a distance to which said bolt threaded section extends.
19 more elements
A connector assembly comprising:
- (a) a bolt having:
- a head;
- a first shank section;
- a threaded section;
- and a second shank section;
- (i) said head having a first outer dimension;
- (ii) said first shank section being adjacent said head and having a non-threaded outer surface;
- said first shank section having an outer dimension less than said first outer dimension;
- (iii) said threaded section being adjacent said first shank section;
- said threaded section having an outer diameter;
- (iv) a second shank section adjacent said threaded section;
- said second shank section having an outer dimension no greater than 90% of said outer diameter of said threaded section;
- (A) said second shank section having a tapered tip;
- (b) a retainer construction secured to said first shank section;
- (i) said retainer construction having an outer dimension of at least 30% greater than said first shank section outer dimension;
- (ii) said retainer construction being spaced from said bolt head a first distance;
- and
- (c) an internally threaded riv-nut;
- (i) said internally threaded riv-nut includes an internally threaded section which extends to a distance away from said bolt head, during assembly, no greater than a distance to which said-bolt threaded section extends.
16 more elements
Dependencies are inferred from the claim text.