US4032250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reamer construction
Assignee: LAVALLEE AND IDE Inc
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Filing: 1976-03-17
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Granted: 1977-06-28
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Expires: 1996-03-17
Abstract
Abstract A reamer having an internal coolant passage therethrough and a fluid dispersing member slidingly disposed in said passage, said dispersing member having a lower portion which extends from a point within said reamer to a point outside of said reamer, whereby said dispersing member is displaceable into the coolant passage upon contact by said lower portion with the bottom of a hole being reamed.
Inventors
- 👤 John A. Lavallee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:45
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/06; B23B51/068; B23D; B23D77/00; B23D77/006; Y; Y10; Y10T; Y10T408/00; Y10T408/44; Y10T408/45; Y10T408/455; Y10T408/89; Y10T408/909; Y10T408/9095
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
85 words
In a reamer comprising a shank and a cutting portion adjacent one end thereof, the improvement which comprises a pilot hole axially disposed in said shank in the cutting portion end thereof, a fluid passage axially disposed throughout the remainder of said shank communicating with said pilot hole, and fluid dispersing means disposed in said fluid passage and having a portion thereof extending through said pilot hole to a point outside of said shank said dispersing means being freely and wholly displaceable into said shank.
Claim 2
Dependent Claim
85 words
In a reamer comprising a shank and a cutting portion adjacent one end thereof, the improvement which comprises a pilot hole axially disposed in said shank in the cutting portion end thereof, a fluid passage axially disposed throughout the remainder of said shank communicating with said pilot hole, and fluid dispersing means disposed in said fluid passage and having a portion thereof extending through said pilot hole to a point outside of said shank said dispersing means being freely and wholly displaceable into said shank.
Claim 3
Dependent Claim
57 words
The reamer of claim 1 wherein said displaceable fluid dispersing means comprises a member having an upper portion and a lower portion, said upper portion being wholly disposed in said fluid passage of said shank and said lower portion extending from a point within said shank to a point outside of said shank through said pilot hole.
Claim 4
Dependent Claim
79 words
The reamer of claim 2 wherein said member has a fluid feeding hole axially disposed therein, said hole terminating in said lower portion adjacent the end thereof, and a plurality of fluid diverting passages communicating with said fluid feeding hole, said passages extending substantially radially outwardly and inclined rearwardly so that when said member is positioned in said shank at its lowermost point fluid passing through said shank is directed at the leading edges of said reamer cutting portion.
Claim 5
Dependent Claim
26 words
The reamer of claim 3 wherein said member is displaceable rearwardly into said shank when said lower portion contacts the bottom of a hole being reamed.
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) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |