Patent US2797431A successfully refreshed from Google Patents.
US3602318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand power tool
Assignee: Robert Bosch GmbH
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Filing: 1969-08-11
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Granted: 1971-08-31
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Expires: 1989-08-11
Abstract
Abstract A hand-operated power tool comprising an elongated housing, a motor arranged therein, a tool at the front end of the housing and adapted to be driven by the motor, and a handgrip spaced rearwardly from the tool. A hand-protector guard is spaced from and extends parallel with the housing, with the front end of the guard secured to the housing forwards of the handgrip and with the rear end of the guard secured to the rear end of the handgrip.
Inventors
- 👤 Erich Slany
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:11
CPC Classifications
B; B23; B23B; B23B45/00; B23B45/001; Y; Y10; Y10T; Y10T408/00; Y10T408/65
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
114 words
A power tool comprising, in combination, an elongated housing; motor means arranged in its entirety in said housing; tool means at the front end of said housing adapted to be driven by said motor means; gripping means on said housing spaced from said front end thereof; and an elongated protecting guard spaced from and extending substantially parallel to the elongation of said housing, said elongated protecting guard being secured at its front end to said housing and at its rear end to the rear end of said gripping means so as to protect the hand of the user while gripping said gripping means especially during operation of said power tool within narrowly spaced surroundings.
Claim 2
Dependent Claim
114 words
A power tool comprising, in combination, an elongated housing; motor means arranged in its entirety in said housing; tool means at the front end of said housing adapted to be driven by said motor means; gripping means on said housing spaced from said front end thereof; and an elongated protecting guard spaced from and extending substantially parallel to the elongation of said housing, said elongated protecting guard being secured at its front end to said housing and at its rear end to the rear end of said gripping means so as to protect the hand of the user while gripping said gripping means especially during operation of said power tool within narrowly spaced surroundings.
Claim 3
Dependent Claim
25 words
A power tool according to claim 1, wherein said gripping means consists of a gripping handle arranged substantially at the rear end of said housing.
Claim 4
Dependent Claim
39 words
A power tool according to claim 2, wherein said gripping handle projects from said elongated housing at an acute angle relative thereto, and wherein said protecting guard includes a front end portion extending substantially parallel with said gripping handle.
Claim 5
Dependent Claim
30 words
A power tool according to claim 1, wherein said rear end of said elongated protecting guard is connected at a right angle to the rear end of said gripping means.
Claim 6
Dependent Claim
19 words
A power tool according to claim 4, wherein said elongated protecting guard is integrally formed with said gripping means.
Claim 7
Dependent Claim
52 words
A power tool as defined in claim 5, wherein said housing has a longitudinal axis and a rear face extending substantially normal to said axis, and wherein said protecting guard and said gripping means integral therewith have a common front face abutting against and connected to said rear face of said housing.
Claim 8
Dependent Claim
36 words
A power tool according to claim 1, wherein said protecting guard, said gripping means and said housing consist of two sections secured to each other in a plane in the longitudinal axis of said elongated housing.
Claim 9
Dependent Claim
26 words
A power tool according to claim 7 wherein said sections are secured to each other in a plane which includes the axis of said tool means.
Claim 10
Dependent Claim
27 words
A power tool according to claim 7, wherein said sections are secured to each other in a plane substantially coaxially with said axis of said tool means.
Claim 11
Dependent Claim
27 words
A power tool as defined in claim 1, wherein said projecting guard extends over a major portion thereof along one side and transversely spaced from said housing.
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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) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |