Patent US3875675A successfully refreshed from Google Patents.
US3875675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
All weather scope mounting base
Assignee: Individual
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Filing: 1973-11-23
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Granted: 1975-04-08
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Expires: 1993-11-23
Abstract
Abstract A scope mounting base for supporting attachable and detachable scope clamping and mounting rings such as are currently being used to accurately and reliably support a conventional scope atop the barrel of a sporting rifle has at least one telescope spacing, elevating and basing adapter mounted on the rifle barrel and coacting portions of the usual clamp-on-type scope mounting rings, and the like. The adapter embodies an elongated, substantially diamond-shaped open-bored see-through collar-type mount or base, whereby to permit selective aiming and feasible use of the customarily employed fixed sights prior to bringing in use the aforementioned telescope sight and zeroing in on the desired target.
Inventors
- 👤 Robert J Krisay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:39
CPC Classifications
F; F41; F41G; F41G11/00; F41G11/001; F41G11/003
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
201 words
A scope ring mounting adapter for supporting attachable and detachable scope mounting rings atop a longitudinally extending barrel of a rifle, comprising, in combination: a. a generally ring-shaped body provided with an opening, said opening being a substantially elongated diamond-shape in transverse cross section and having the longest axis therefor arranged transversely across the rifle; b. means for detachably fastening the body to a barrel of a rifle, with the opening being arranged for permitting use of other sights of the rifle; and c. means for seating a scope mounting clamp on the body, the means for seating and the means for fastening each having a respective center of symmetry relative to the extent of the rifle barrel, with the center of symmetry of the means for seating being arranged offset from the center of symmetry of the means for fastening and permitting reversal of the adapter on the rifle barrel so as to provide eye relief for a shooter, and the means for seating including a centralized channel arrangeable transverse of the extent of the rifle barrel for receiving a downwardly extending member of the scope clamp and preventing forward and rearward motion of a scope relative to the rifle.
Claim 2
Dependent Claim
201 words
A scope ring mounting adapter for supporting attachable and detachable scope mounting rings atop a longitudinally extending barrel of a rifle, comprising, in combination: a. a generally ring-shaped body provided with an opening, said opening being a substantially elongated diamond-shape in transverse cross section and having the longest axis therefor arranged transversely across the rifle; b. means for detachably fastening the body to a barrel of a rifle, with the opening being arranged for permitting use of other sights of the rifle; and c. means for seating a scope mounting clamp on the body, the means for seating and the means for fastening each having a respective center of symmetry relative to the extent of the rifle barrel, with the center of symmetry of the means for seating being arranged offset from the center of symmetry of the means for fastening and permitting reversal of the adapter on the rifle barrel so as to provide eye relief for a shooter, and the means for seating including a centralized channel arrangeable transverse of the extent of the rifle barrel for receiving a downwardly extending member of the scope clamp and preventing forward and rearward motion of a scope relative to the rifle.
Claim 3
Dependent Claim
87 words
A structure as defined in claim 1, wherein the means for seating includes a pair of spaced, parallel ribs arranged substantially V-shaped in transverse cross section, each rib having a flat seating and stabilizing surface coplanar with the same surface of the other rib and an inclined surface extending away from the flat surface and the other rib, said centralized channel arranged transverse of the ribs, the longest axis of the opening being arranged transverse of the ribs, and a centralized longitudinal open-ended channel separating said ribs.
Claim 4
Dependent Claim
84 words
A structure as defined in claim 2, wherein the means for fastening is characterized by an integral elongated block capable of being positioned firmly flatwise and lengthwise atop an underlying rifle barrel stock-supported mounting sleeve, said block having bolt holes therein for reception and retention of headed hold-down and anchoring bolts, and a side of the body opposed to the block and having the centralized channel and provided with at least one readily usable screw-driver inserting hole aligned with an associated bolt accommodating hole.
Claim 5
Dependent Claim
44 words
The structure defined in and according to claim 1, and, in combination, a second scope clamp spacing, elevating and scope mounting adapter constructed substantially as the first-named adapter, the respective means for fastening being joined and united by an elongated linking and securing bar.
Claim 6
Dependent Claim
41 words
A structure as defined in claim 1, wherein said substantially elongated diamond-shape opening comprises two pairs of walls defining the opening, each pair of walls arranged joined to and extending from one another toward the longest axis and forming opposed V-portions.
Claim 7
Dependent Claim
44 words
The structure defined in and according to claim 5, and, in combination, a second scope clamp spacing, elevating and scope mounting adapter constructed substantially as the first-named adapter, the respective means for fastening being joined and united by an elongated linking and securing bar.
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) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |