Patent US3698351A successfully refreshed from Google Patents.
US3698351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration detector
Assignee: Individual
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Filing: 1969-10-27
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Granted: 1972-10-17
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Expires: 1989-10-27
Abstract
Abstract For use in detecting vibrations of rotary equipment or the like, the apparatus incorporating a case enclosing a rolamite structure including a pair of cylindrical rollers and tension band, the band being biased to position the rollers at a range of locations on normal or non-excessive vibrations wherein an increase in vibrations moves the cluster to an alternative position to thereby trigger operation of indicator equipment associated with the vibration detector.
Inventors
- 👤 Robert S Harrah
- 👤 Manmohan Suigh Kalsi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:40
CPC Classifications
G; G01; G01H; G01H1/00; G01H1/003; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18832
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
215 words
An indicating device comprising: a. rolamite cluster means including a tension band and a pair of rollers; b. a case enclosing said rolamite cluster means, said case having a pair of opposing side walls, the distance therebetween being less than the sum of the diameters of said pair of rollers, and said tension band being looped into a pair of bights to at least partially encircle said rollers in the bights thereof wherein said rolamite cluster means has at least a limited range of movement from a first position to a second and different position; c. bias means co-acting with said rolamite cluster means tending to maintain said rolamite cluster means in the first position; d. said rolamite cluster means having a mass requiring a force exceeding a predetermined level to move said rolamite cluster means from the first to the second position; e. alarm condition indicator means cooperatively arranged with respect to said rolamite cluster means to respond to movement of said rolamite cluster means from the first to the second position; f. a piston and cylinder arrangement adapted to communicate with a pressure fluid source; and, g. a plunger moved by said piston to contact said rolamite cluster means to urge said rolamite cluster means to the first position from the second position.
Claim 2
Dependent Claim
215 words
An indicating device comprising: a. rolamite cluster means including a tension band and a pair of rollers; b. a case enclosing said rolamite cluster means, said case having a pair of opposing side walls, the distance therebetween being less than the sum of the diameters of said pair of rollers, and said tension band being looped into a pair of bights to at least partially encircle said rollers in the bights thereof wherein said rolamite cluster means has at least a limited range of movement from a first position to a second and different position; c. bias means co-acting with said rolamite cluster means tending to maintain said rolamite cluster means in the first position; d. said rolamite cluster means having a mass requiring a force exceeding a predetermined level to move said rolamite cluster means from the first to the second position; e. alarm condition indicator means cooperatively arranged with respect to said rolamite cluster means to respond to movement of said rolamite cluster means from the first to the second position; f. a piston and cylinder arrangement adapted to communicate with a pressure fluid source; and, g. a plunger moved by said piston to contact said rolamite cluster means to urge said rolamite cluster means to the first position from the second position.
Claim 3
Dependent Claim
28 words
The invention of claim 1 including a set screw acting against a portion of said tension band to create a variable force acting on said rolamite cluster means.
Claim 4
Dependent Claim
39 words
The invention of claim 1, wherein said tension band acts on said rollers with a force tending to maintain said cluster means at the first position, there being a means for adjusting the force in a range of values.
Claim 5
Dependent Claim
52 words
The invention of claim 1 wherein said indicator means includes a pressure inlet port in said case opening at a point covered by said tension band when said rolamite cluster means is in the first position but exposed in said case on movement of said rolamite cluster means to the second position.
Claim 6
Dependent Claim
27 words
The invention of claim 4 wherein an outlet port is formed in said case and in communication with said inlet port selectly controlled by said tension band.
Claim 7
Dependent Claim
37 words
The invention of claim 5 wherein one side wall of said case has an opening means therein and a seal means surrounds said Opening means and seals against said tension band, said inlet port being connected thereto.
Claim 8
Dependent Claim
26 words
The invention of claim 1 wherein said cylinder is positioned with respect to said case so as to direct said plunger toward said rolamite cluster means.
Claim 9
Dependent Claim
25 words
The invention of claim 7 wherein said case is formed of two separable portions, one incorporating said side walls and the other including said cylinder.
Claim 10
Dependent Claim
19 words
The invention of claim 8 including a seal means between said two portions for defining a leak-proof connection therebetween.
Claim 11
Dependent Claim
64 words
The invention of claim 1 further including a partially cut tab in said tension band and wherein said tab is positioned adjacent one of said side walls, and further including an adjustable protruding set screw extending from said side wall and displacing said tab by a controlled and adjustable amount, said tab deflecting and forming a bias force acting on said rolamite cluster means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |