US4819334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orbital saw device
Assignee: Linvatec Corp
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Filing: 1983-05-06
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Granted: 1989-04-11
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Expires: 2003-05-06
Abstract
Abstract An orbital saw for use in orthopedic applications such as cutting bones including a one-piece, externally mounted saw blade that can be quickly and easily replaced by unlocking a pair of blade clamps. The saw can be battery operated. The battery is keyed and locked with a hand grip by a release lever to form a handle. The battery can be unlocked and replaced when it becomes run down.
Inventors
- 👤 Douglas R. Mongeon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:57
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/14; A61B17/142; A61B17/144; B; B23; B23D; B23D49/00; B23D49/10; B23D49/16; B23D49/162; B23D49/165; B23D51/00; B23D51/08; B23D51/10; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9319
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
An elongate, integral saw blade having opposite major surfaces and a peripheral edge surface, said blade comprising: a. a first end portion having a cylindrical drive surface between said major surfaces defining a through drive aperture adapted to receive a drive bearing; b. an intermediate portion extending from said first end portion and having a guide aperture between said major surfaces adapted to engage a guide, said guide aperture being partially defined by facing guide surfaces located between said major surfaces and longitudinally aligned with said blade; c. a second end portion extending from said intermediate portion opposite said first end portion and having a plurality of cutting edges along said peripheral edge surface; and d. means between said drive aperture and said guide aperture for preventing reception of said drive bearing and engagment of said guide from one of said opposite major surfaces.
Claim 2
Dependent Claim
144 words
An elongate, integral saw blade having opposite major surfaces and a peripheral edge surface, said blade comprising: a. a first end portion having a cylindrical drive surface between said major surfaces defining a through drive aperture adapted to receive a drive bearing; b. an intermediate portion extending from said first end portion and having a guide aperture between said major surfaces adapted to engage a guide, said guide aperture being partially defined by facing guide surfaces located between said major surfaces and longitudinally aligned with said blade; c. a second end portion extending from said intermediate portion opposite said first end portion and having a plurality of cutting edges along said peripheral edge surface; and d. means between said drive aperture and said guide aperture for preventing reception of said drive bearing and engagment of said guide from one of said opposite major surfaces.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-10 | 1992-10-10 | 1993-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-10 | 1996-10-10 | 1997-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-10 | 2000-10-10 | 2001-04-11 | $7700.00 | Window Closed / Lapsed |