Patent US4070902A successfully refreshed from Google Patents.
US4070902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment for air gauging apparatus
Assignee: Individual
•
Filing: 1976-12-06
•
Granted: 1978-01-31
•
Expires: 1996-12-06
Abstract
Abstract An attachment is provided for mounting over the nozzle tip of an air gauge follower system to permit use of the system in gauging thin, fragile sheet stock or work having a rough or irregular surface. The attachment includes a thin, flexible diaphragm mounted by means of a collar over the tip of the nozzle in the air gauging apparatus. The diaphragm normally closes the nozzle port and expands out against the work when air pressure is applied through the nozzle forming the air gap which controls the measuring device.
Inventors
- 👤 Max Knobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:38
CPC Classifications
G; G01; G01B; G01B13/00; G01B13/02; G01B13/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
138 words
An attachment for an air gauging apparatus having a nozzle having an orifice positioned in close proximity to the work being gauged and adapted to direct a flow of air through said orifice against said work to form a gap therewith, comprising a. a flexible diaphragm, and, b. means mounting said diaphragm to said nozzle and across said orifice, c. said diaphragm normally closing said orifice under an idle condition of said nozzle and forming a gap therewith and in contact with said work when under a pressurized condition, d. said mounting means including a tubular sleeve having an inside diameter greater than the outside diameter of said nozzle, said diaphragm being mounted across one end of said sleeve and a perforated annulus spaced from said one end mounted to said sleeve and adapted to engage said nozzle.
Claim 2
Dependent Claim
138 words
An attachment for an air gauging apparatus having a nozzle having an orifice positioned in close proximity to the work being gauged and adapted to direct a flow of air through said orifice against said work to form a gap therewith, comprising a. a flexible diaphragm, and, b. means mounting said diaphragm to said nozzle and across said orifice, c. said diaphragm normally closing said orifice under an idle condition of said nozzle and forming a gap therewith and in contact with said work when under a pressurized condition, d. said mounting means including a tubular sleeve having an inside diameter greater than the outside diameter of said nozzle, said diaphragm being mounted across one end of said sleeve and a perforated annulus spaced from said one end mounted to said sleeve and adapted to engage said nozzle.
Claim 3
Dependent Claim
11 words
An attachment, according to claim 1, wherein said diaphragm is rubber.
Claim 4
Dependent Claim
21 words
An attachment, according to claim 1, including a rigid disc centrally mounted on a face of said diaphragm opposite said orifice.
Claim 5
Dependent Claim
11 words
An attachment, according to claim 3, wherein said disc is metal.
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) | 1981-01-30 | 1981-08-01 | 1982-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-30 | 1985-08-01 | 1986-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-30 | 1989-08-01 | 1990-01-31 | $7700.00 | Window Closed / Lapsed |