Patent US3058204A successfully refreshed from Google Patents.
Patent US3691690A successfully refreshed from Google Patents.
US3691690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive blast cleaning arrangement
Assignee: Pangborn Corp
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Filing: 1970-10-16
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Granted: 1972-09-19
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Expires: 1990-10-16
Abstract
Abstract An abrasive blast cleaning arrangement includes a slat conveyor wherein each individual slat has a removable channel shaped cap thereon. The cap and slat are secured together by studs welded to the inner face of the cap so as not to protrude through its wear face.
Inventors
- 👤 Willard J Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:58
CPC Classifications
B; B24; B24C; B24C3/00; B24C3/18; B24C3/26
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
153 words
An abrasive blast cleaning arrangement comprising a slat conveyor for holding workpieces to be cleaned, said slat conveyor having an upper support surface, abrasive cleaning means positioned for projecting abrasive particles toward said support surface, said conveyor comprising a plurality of interconnected individual basic slats, each individual basic slat having an upper surface and sides extending lengthwise across the width of said slat conveyor, at least one wear resistant cap connected to each of said slats, each of said caps being channel shaped with a pair of side flanges interconnected by a briding member, said side flanges shielding the sides of its basic slat and said bridging member, shielding the upper surface of its basic slat, said bridging member having a wear surface remote from its basic slat, the wear surface of all of The bridging members jointly comprising said support surface, and fastening means removably connecting each cap to its basic slat.
Claim 2
Dependent Claim
153 words
An abrasive blast cleaning arrangement comprising a slat conveyor for holding workpieces to be cleaned, said slat conveyor having an upper support surface, abrasive cleaning means positioned for projecting abrasive particles toward said support surface, said conveyor comprising a plurality of interconnected individual basic slats, each individual basic slat having an upper surface and sides extending lengthwise across the width of said slat conveyor, at least one wear resistant cap connected to each of said slats, each of said caps being channel shaped with a pair of side flanges interconnected by a briding member, said side flanges shielding the sides of its basic slat and said bridging member, shielding the upper surface of its basic slat, said bridging member having a wear surface remote from its basic slat, the wear surface of all of The bridging members jointly comprising said support surface, and fastening means removably connecting each cap to its basic slat.
Claim 3
Dependent Claim
50 words
An arrangement as set forth in claim 1 wherein said fastening means includes fastening elements secured to said bridging member remote from wear surface, and said wear surface being imperforate with respect to said fastening elements whereby said fastening elements are shielded from the abrasive particles by said wear surface.
Claim 4
Dependent Claim
42 words
An arrangement as set forth in claim 2 wherein at least one basic slat is shielded by a plurality of said caps, said plurality of caps being connected together by ship lap type joints formed by mating ledges on the individual caps.
Claim 5
Dependent Claim
53 words
An arrangement as set forth in claim 3 wherein said caps and basic slats include matching drain holes, said basic slats including holes through which said fasteners extend, said fasteners being threaded studs welded at one end to said bridging member, and a threaded coupling engaged with the other end of each stud.
Claim 6
Dependent Claim
41 words
An arrangement as set forth in claim 4 wherein one of said side flanges is beveled toward its basic slat, and each of said side flanges having internal spacers disposed between said side flanges and the sides of its basic slat.
Claim 7
Dependent Claim
38 words
An arrangement as set forth in claim 5 wherein said slat conveyor is trough shaped, and said abrasive cleaning means being at least one centrifugal throwing wheel disposed at the open end formed by said trough shaped conveyor.
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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |