# US 4,393,559 A · U-Bolt clamp with tubular reinforcing means

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- Number: US 4,393,559 A
- Document ID: US4393559A
- Status: Granted
- Kind: A
- Application number: 06/283,237
- Filed: 1981-07-14
- Granted: 1983-07-19
- Earliest claimed: 1981-07-14
- Assignees: Heckethorn Manufacturing Company
- Inventors: John E. Heckethorn; Danny J. Whittle
- Web page: https://patentgrep.com/patent/US4393559A

## CPC

- F01N 13/1805: {Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body (pipe joints in general F16L; fixing auxiliaries in motor vehicles in general B60K)}
- F01N 13/1822: {for fixing exhaust pipes or devices to vehicle body}
- F16L 25/04: comprising a collar or ring having a threaded pin rigid with the pipe-encircling member
- F01N 2450/24: by bolts, screws, rivets or the like
- Y10T 24/1437: Both ends threaded
- F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16)
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A new saddle construction for a U-bolt pipe clamp assembly formed from a single blank of sheet steel without welding and including a tubular cross reinforcement rib of preferably triangular cross section spanning the top of the saddle completely between the two bolt receiving housings. The saddle is formed in a progressive die and is adapted in conjunction with its mating U-bolt to indent a circumferential bead in the pipe sections being joined.

## Claims

### Claim 1

A U-bolt clamp saddle body formed from a single folded blank of sheet metal, including a pair of spaced parallel U-bolt leg receiving housings, a central web section having an arcuate lower edge extending between said housing, and an integral tubular reinforcing rib extending from one said housing to the other on said web and forming the top face thereof, said reinforcing rib being of triangular cross section and having a planar top face between two of the verticies defined by said triangular cross section, the third vertex defined by said triangular cross section of said rib being located between the top face and said arcuate lower edge.

### Claim 2 (depends on 1)

A U-bolt clamp saddle as defined in either of claims 1 wherein the ends of the housings serve as nut seats and said reinforcing rib is flush with the said ends to provide a flat continuous upper saddle face.

### Claim 3 (depends on 2)

A U-bolt clamp saddle as defined in claim 2 wherein the width of said reinforcing rib is less than the width of said housings.

### Claim 4 (depends on 1)

A U-bolt clamp saddle as defined in claim 1 wherein the blank is formed with a progressive die and is folded along the lines defining the top edges of the reinforcing section.

### Claim 5 (depends on 1)

A U-bolt clamp saddle as defined in claim 1, wherein said edge is chamfered.

### Claim 6

A U-bolt clamp assembly comprising a U-bolt having an arcuate bight portion and two spaced parallel legs, the top portions of which are threaded, a saddle body formed from a single folded blank of sheet metal and having a pair of spaced parallel elongated housings receiving the legs of the U-bolt therethrough, a central web section having an arcuate lower edge and having the same radius as said bight portion of the U-bolt and extending between said housings, and an integral tubular reinforcing rib extending from one said housing to the other on said web and forming the top face thereof, said reinforcing rib being of triangular cross section and having a planar top face between two of the verticies defined by said triangular cross section, the third vertex defined by said triangular cross section of said rib being located between the top face and said arcuate lower edge, said assembly being adapted to receive a pair of telescoped pipe sections therein, and nut means threaded on said U-bolt leg threaded portions.

### Claim 7 (depends on 6)

A U-bolt clamp assembly as defined in either claim 6 wherein said reinforcing rib is flush with the ends of said elongated housings.