US3765249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gauge casing construction
Assignee: Dresser Industries Inc
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Filing: 1971-09-23
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Granted: 1973-10-16
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Expires: 1991-09-23
Abstract
Abstract A plastic gauge casing formed of separate front and rear cuplike interfitting sections. Concentrically arranged annular skirts on a first section define an annular recess therebetween. In assembly, an annular skirt on the second section is telescopically received in the recess contiguously in an interleaved relation with skirts of the first section. Mutually engageable radial tabs on opposite facing skirts provide an interlock against pullout.
Inventors
- 👤 R Bissell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:57
CPC Classifications
G; G01; G01L; G01L19/00; G01L19/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
191 words
A plastic casing for a gauge instrument comprising in combination: a. a molded plastic first cup-like case comprising the front casing section and having an axially extending substantially annular skirt molded integral therewith; b. a molded plastic second cup-like case comprising the rear casing section and having a first axially extending substantially annular skirt molded integral therewith, said rear section first skirt being of an outside diameter closely approximating the inner diameter of said front casing skirt to contiguously subtend said front casing skirt in a generally superposed interfit therewith to define an assembled casing enclosure; c. said second case also having a second axially extending substantially annular skirt molded integral therewith of axial extent less than the first skirt thereof, said second skirt being concentric with and radially outward of the rear casing first skirt to define an annular recess therebetween in which to receive the axially outboard end of the first front case skirt in interleaving relation therewith; and d. arcuate tabs on at least two contiguous skirts of said front section and of said second section in said interleaving relation providing a mutually overlapping interlock therebetween against pullout.
Claim 2
Dependent Claim
191 words
A plastic casing for a gauge instrument comprising in combination: a. a molded plastic first cup-like case comprising the front casing section and having an axially extending substantially annular skirt molded integral therewith; b. a molded plastic second cup-like case comprising the rear casing section and having a first axially extending substantially annular skirt molded integral therewith, said rear section first skirt being of an outside diameter closely approximating the inner diameter of said front casing skirt to contiguously subtend said front casing skirt in a generally superposed interfit therewith to define an assembled casing enclosure; c. said second case also having a second axially extending substantially annular skirt molded integral therewith of axial extent less than the first skirt thereof, said second skirt being concentric with and radially outward of the rear casing first skirt to define an annular recess therebetween in which to receive the axially outboard end of the first front case skirt in interleaving relation therewith; and d. arcuate tabs on at least two contiguous skirts of said front section and of said second section in said interleaving relation providing a mutually overlapping interlock therebetween against pullout.
Claim 3
Dependent Claim
44 words
A plastic casing for a gaUge instrument according to claim 1 in which the arcuate tab on at least one of said cases is of a terminal arcuate length and comprises one of a plurality of similar tabs angularly displaced about its supporting skirt.
Claim 4
Dependent Claim
27 words
A plastic casing for a gauge instrument according to claim 1 in which said arcuate tabs are located at substantially the ends of their respective supporting skirts.
Claim 5
Dependent Claim
70 words
A plastic casing for a gauge instrument according to claim 1 in which said arcuate tabs are located at substantially the ends of the skirt on said first case and the second skirt of said second case and said first case skirt includes an annular recess preceding its terminal outboard end in which to receive a tab of said second skirt radially overlapping the tab thereof for effecting said interlock.
Claim 6
Dependent Claim
44 words
A plastic casing for a gauge instrument according to claim 4 in which the arcuate tab on at least one of said cases is of a terminal arcuate length and comprises one of a plurality of similar tabs angularly displaced about its supporting skirt.
Claim 7
Dependent Claim
23 words
A plastic casing for a gauge instrument according to claim 5 in which said plurality of tabs are contained on said second case.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |