US4326155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shockwave probe
Assignee: Cleveland Motion Controls Inc
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Filing: 1980-06-03
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Granted: 1982-04-20
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Expires: 2000-06-03
Abstract
Abstract Probe method and means are disclosed for guiding and positioning a robot-actuated tool, such as a gripper or a welding head, through at least one transceiver for generating and sensing focused shockwaves, the probe being associated with the tool for relative movement with respect to the object or objects being sensed, without physically contacting the same.
Inventors
- 👤 Elmer L. Griebeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:14
CPC Classifications
B; B25; B25J; B25J19/00; B25J19/02; B25J19/026; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/12; B23Q35/127; Y; Y10; Y10S; Y10S367/00; Y10S367/906
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
96 words
In a control system for a tool-positioning robot, a work-sensing probe that senses the locus of work to be performed, including the loci of a continuum of such work, without physically contacting the work, comprising means for generating a focused shockwave, means for receiving the reflection of a focused shockwave, means for differentiating the time/pressure parameters of the original shockwave from those of its reflection, and means for translating the observed parametric differences into an electric signal within the control system to direct the robot to position the tool at the sensed locus of the work.
Claim 2
Dependent Claim
96 words
In a control system for a tool-positioning robot, a work-sensing probe that senses the locus of work to be performed, including the loci of a continuum of such work, without physically contacting the work, comprising means for generating a focused shockwave, means for receiving the reflection of a focused shockwave, means for differentiating the time/pressure parameters of the original shockwave from those of its reflection, and means for translating the observed parametric differences into an electric signal within the control system to direct the robot to position the tool at the sensed locus of the work.
Claim 3
Dependent Claim
17 words
The invention of claim 1, in which the means for generating a shockwave includes a piezoelectric component.
Claim 4
Dependent Claim
20 words
The invention of claim 1, in which the means for receiving the reflection of a shockwave includes a piezoelectric component.
Claim 5
Dependent Claim
14 words
The invention of claim 2, in which the piezoelectric component is a piezo-bender disc.
Claim 6
Dependent Claim
14 words
The invention of claim 3, in which the piezoelectric component is a piezo-bender disc.
Claim 7
Dependent Claim
18 words
The invention of claim 1, in which the shockwave generating- and reflection-receiving means are combined as a transceiver.
Claim 8
Dependent Claim
13 words
The invention of claim 6, in which the transceiver includes a piezoelectric component.
Claim 9
Dependent Claim
14 words
The invention of claim 7, in which the piezoelectric component is a piezo-bender disc.
Claim 10
Dependent Claim
46 words
The invention of claim 1, in which the differentiating means and translating means includes step-recognizer means for noting the pressure immediately before and after the shockwave to provide a threshold voltage intermediately of the noted pressure values, and voltage comparator means responsive to said threshold voltage.
Claim 11
Dependent Claim
26 words
The invention of claim 9, further including means for comparing the characteristics of the received reflection of a shockwave with those of a preselected reference standard.
Claim 12
Dependent Claim
31 words
The invention of claim 1, in which the translating means includes a time-to-voltage translator that converts the time between shockwave generation and the reception of its reflection into a voltage value.
Claim 13
Dependent Claim
23 words
The invention of claim 11, in which the voltage value represents the distance between the tool and the sensed locus of the work.
Claim 14
Dependent Claim
22 words
The invention of claim 1, in which the means for generating a shockwave has means for focusing the shockwave associated with it.
Claim 15
Dependent Claim
12 words
The invention of claim 2, including means for focusing a generated shockwave.
Claim 16
Dependent Claim
12 words
The invention of claim 4, including means for focusing a generated shockwave.
Claim 17
Dependent Claim
18 words
The invention of claim 6, in which the transceiver is associated with means for focusing a generated shockwave.
Claim 18
Dependent Claim
68 words
The invention of claim 15, including a statically inert mass for mounting the piezo-bender disc at its center, said mass having annular clearance spaces for the disc freely to oscillate in response to impressed voltage, a radiating surface activated by the disc to generate focused shockwaves in the ambient atmosphere, and means for damping and absorbing residual and extraneous vibrations that are not components of a generated shockwave.
Claim 19
Dependent Claim
24 words
The invention of claim 17, in which the radiating surface produces a spherical shockwave that radiates in converging relation to a remote focal point.
Claim 20
Independent Claim
71 words
The method of sensing the presence and location of an object, without physically contacting it, that includes generating a focused shockwave, beaming the shockwave with the object at the focus of the shockwave so that a sufficient amount of the energy of the shockwave is reflected from it, receiving the reflection, and translating the parameters of time, distance, and pressure difference of the shockwave and its reflection into an electric signal.
Claim 21
Independent Claim
71 words
The method of sensing the presence and location of an object, without physically contacting it, that includes generating a focused shockwave, beaming the shockwave with the object at the focus of the shockwave so that a sufficient amount of the energy of the shockwave is reflected from it, receiving the reflection, and translating the parameters of time, distance, and pressure difference of the shockwave and its reflection into an electric signal.
Claim 22
Dependent Claim
24 words
The method of claim 19, which includes effecting relative positioning between the sensed object and a work zone in response to the electric signal.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-19 | 1985-10-19 | 1986-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-19 | 1989-10-19 | 1990-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-19 | 1993-10-19 | 1994-04-20 | $7700.00 | Window Closed / Lapsed |