Patent US3800474A successfully refreshed from Google Patents.
US3800474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liner plate junction seal
Assignee: Individual
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Filing: 1972-06-26
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Granted: 1974-04-02
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Expires: 1992-06-26
Abstract
Abstract The interengagement of adjacent liner plates in blasting machines is provided with a volumetrically-resilient seal, the seal being of a material capable of absorbing the energies of particles entering the junction at high velocity.
Inventors
- 👤 J Sack
- 👤 B Fuerst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:25
CPC Classifications
B; B24; B24C; B24C5/00; B24C5/06; B24C5/066
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
179 words
A blasting machine having a housing, means operative to produce a high velocity stream of abrasive particles within and projecting from said housing, a plurality of cast liner plates adapted to cover at least portions of the interior of said housing, certain of said liner plates having an overlapping bearing engagement along a first surface of at least one offset in said certain liner plates, said first surface extending from an interior surface of said certain liner plates, said offset being at least in part defined by a second surface intersecting said first surface along a portion interengaged with an adjacent liner plate, and means securing said liner plates with respect to said housing, wherein the improvement comprises: a strip of resilient deformable material disposed against said second surface and interposed between said second surface and the liner plate adjacent thereto said material having a free thickness prior to interengagement of said plates selected to occupy under compression all of the space between said second surface and said adjacent liner plate on assembly of said plates to said housing.
Claim 2
Dependent Claim
179 words
A blasting machine having a housing, means operative to produce a high velocity stream of abrasive particles within and projecting from said housing, a plurality of cast liner plates adapted to cover at least portions of the interior of said housing, certain of said liner plates having an overlapping bearing engagement along a first surface of at least one offset in said certain liner plates, said first surface extending from an interior surface of said certain liner plates, said offset being at least in part defined by a second surface intersecting said first surface along a portion interengaged with an adjacent liner plate, and means securing said liner plates with respect to said housing, wherein the improvement comprises: a strip of resilient deformable material disposed against said second surface and interposed between said second surface and the liner plate adjacent thereto said material having a free thickness prior to interengagement of said plates selected to occupy under compression all of the space between said second surface and said adjacent liner plate on assembly of said plates to said housing.
Claim 3
Dependent Claim
161 words
A blasting machine having a housing, means operative to produce a high velocity stream of abrasive particles within and projecting from said housing, a plurality of cast liner plates adapted to cover at least portions of the interior of said housing, certain of said liner plates being interengaged in tongue-and-groove relationship along a path substantially parallel to said stream, and means securing said liner plates with respect to said housing, said means being operative to press said interengaged liner plates together in a direction to increase the depth of said interengagement, wherein the improvement comprises: a strip of resilient deformable material disposed in said groove and interposed between the bottom of said groove and said tongue, said material having a free thickness prior to interengagement of said plates, in the direction of the depth of said groove, selected to occupy under compression all of the space between said groove bottom and said tongue on assembly of said plates to said housing.
Claim 4
Dependent Claim
161 words
A blasting machine having a housing, means operative to produce a high velocity stream of abrasive particles within and projecting from said housing, a plurality of cast liner plates adapted to cover at least portions of the interior of said housing, certain of said liner plates being interengaged in tongue-and-groove relationship along a path substantially parallel to said stream, and means securing said liner plates with respect to said housing, said means being operative to press said interengaged liner plates together in a direction to increase the depth of said interengagement, wherein the improvement comprises: a strip of resilient deformable material disposed in said groove and interposed between the bottom of said groove and said tongue, said material having a free thickness prior to interengagement of said plates, in the direction of the depth of said groove, selected to occupy under compression all of the space between said groove bottom and said tongue on assembly of said plates to said housing.
Claim 5
Dependent Claim
21 words
A machine as defined in claim 2, additionally including adhesive material interposed between said strip and the bottom of said groove.
Claim 6
Dependent Claim
16 words
A machine as defined in claim 2, wherein said strip is composed substantially of gas cells.
Claim 7
Dependent Claim
20 words
A machine as defined in claim 2, wherein the free width of said strip exceeds the width of said groove.
Claim 8
Dependent Claim
30 words
A machine as defined in claim 2, wherein the said strip, on insertion thereof into said groove and prior to the interengagement of said plates, substantially fully occupies said groove.
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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |