Patent US3898743A successfully refreshed from Google Patents.
US3898743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe target assembly
Assignee: Allied Steel and Tractor Products Inc
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Filing: 1973-11-01
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Granted: 1975-08-12
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Expires: 1993-11-01
Abstract
Abstract A target assembly for placement in a pipe to establish the center thereof. The target assembly includes a resilient frame formed from a single wire into a symetrical planer structure. The frame is capable of manual compression for insertion into a pipe of an inside diameter for which the target assembly was selected. The resiliency of the frame then forces the assembly outwardly against the inside of the pipe in a symetrical fashion such that the assembly will be centrally located within the pipe. A target is attached to the frame in such a way that the target defines the center of the pipe with the assembly in place. Two fixed points are established where the target is mounted to the frame. The target and frame are attached in such a way that the flexure of the frame about the two fixed attachment points is not restrained by the target in order that the symetrical placement of the assembly will not be impaired.
Inventors
- 👤 Rudolph S Myeress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:29
CPC Classifications
G; G01; G01C; G01C15/00; G01C15/02; G01C15/06
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
95 words
A target assembly for defining a point on the centerline of a pipe, comprising: a resilient frame formed from a wire defining three points of contact for engaging the inner wall of a pipe said three points lying in a plane which is generally perpendicular to the axis of the pipe, said resilient frame being capable of deflecting symmetrically when subject to symmetrical compression loading; a target; and means for mounting said target centrally on said resilient frame, said means allowing symmetrical deflection of said frame when said frame is subjected to symmetrical compression loading.
Claim 2
Dependent Claim
95 words
A target assembly for defining a point on the centerline of a pipe, comprising: a resilient frame formed from a wire defining three points of contact for engaging the inner wall of a pipe said three points lying in a plane which is generally perpendicular to the axis of the pipe, said resilient frame being capable of deflecting symmetrically when subject to symmetrical compression loading; a target; and means for mounting said target centrally on said resilient frame, said means allowing symmetrical deflection of said frame when said frame is subjected to symmetrical compression loading.
Claim 3
Dependent Claim
32 words
The target assembly of claim 1 wherein said frame is larger than the inside diameter of the pipe in order that the target assembly will remain fixed within the pipe by compression.
Claim 4
Dependent Claim
32 words
The target assembly of claim 2 wherein said resilient frame is capable of being manually compressed for insertion into the pipe and then allowed to expand to become fixed in the pipe.
Claim 5
Dependent Claim
27 words
The target assembly of claim 1 wherein said resilient frame includes two handles positioned to allow manual compression of said frame with resulting symetrical compression loading thereon.
Claim 6
Dependent Claim
40 words
The target assembly of claim 1 wherein said mounting means includes pin means extending through said target, mounting loops formed in said frame to receive said pin means and channel nuts for retaining said mounting loops about said pin means.
Claim 7
Dependent Claim
32 words
The target assembly of claim 5 wherein said pin means are positioned in said target so that said frame must be resiliently expanded to position said mounting loops about said pin means.
Claim 8
Dependent Claim
122 words
A target assembly for defining a point on the centerline of a pipe, comprising: a resilient frame, said resilient frame being formed from a continuous length of wire into two lower loops, an upper loop and two mounting loops, said plurality of loops defining a single plane and said upper loop and said lower loops defining three points of contact for engaging the inner wall of a pipe said three points lying in a plane which is generally perpendicular to the axis of the pipe, said upper loop being attached at either end to said mounting loops and said mounting loops in turn being attached to said bottom loops; a target; and means for mounting said target centrally to said resilient frame.
Claim 9
Dependent Claim
122 words
A target assembly for defining a point on the centerline of a pipe, comprising: a resilient frame, said resilient frame being formed from a continuous length of wire into two lower loops, an upper loop and two mounting loops, said plurality of loops defining a single plane and said upper loop and said lower loops defining three points of contact for engaging the inner wall of a pipe said three points lying in a plane which is generally perpendicular to the axis of the pipe, said upper loop being attached at either end to said mounting loops and said mounting loops in turn being attached to said bottom loops; a target; and means for mounting said target centrally to said resilient frame.
Claim 10
Dependent Claim
32 words
The target assembly of claim 7 wherein said frame is larger than the inside diameter of the pipe in order that the target assembly will remain fixed within the pipe by compression.
Claim 11
Dependent Claim
32 words
The target assembly of claim 8 wherein said resilient frame is capable of being manually comprssed for insertion into the pipe and then allowed to expand to become fixed in the pipe.
Claim 12
Dependent Claim
27 words
The target assembly of claim 7 wherein said resilient frame includes two handles positioned to allow manual compression of said frame with resulting symetrical compression loading thereon.
Claim 13
Dependent Claim
151 words
A target assembly for defining a point on the centerline of a pipe, comprising: a resilient frame formed from a continuous length of wire into two lower loops, and an upper loop, and two mounting sections, said frame being planar and symmetrical and said frame being capable of deflection symmetrically when subjecteD to compression loading against said lower two loops, said two lower loops and said upper loop forming three points of contact for engaging the inner wall of a pipe said three points lying in a plane which is generally perpendicular to the axis of the pipe; a rigid target; and means for mounting said target centrally on said resilient frame at said two mounting sections, said mounting means including pin means and channel nut for cooperating with said mounting sections to retain said target on said frame and for allowing symmetrical deflection of said frame about said pin means.
Claim 14
Dependent Claim
151 words
A target assembly for defining a point on the centerline of a pipe, comprising: a resilient frame formed from a continuous length of wire into two lower loops, and an upper loop, and two mounting sections, said frame being planar and symmetrical and said frame being capable of deflection symmetrically when subjecteD to compression loading against said lower two loops, said two lower loops and said upper loop forming three points of contact for engaging the inner wall of a pipe said three points lying in a plane which is generally perpendicular to the axis of the pipe; a rigid target; and means for mounting said target centrally on said resilient frame at said two mounting sections, said mounting means including pin means and channel nut for cooperating with said mounting sections to retain said target on said frame and for allowing symmetrical deflection of said frame about said pin means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |