US3893670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf club with interchangeable heads
Assignee: Individual
•
Filing: 1973-11-02
•
Granted: 1975-07-08
•
Expires: 1993-11-02
Abstract
Abstract A golf club having interchangeable heads, wherein the golf club comprises a shaft having a support plate secured to the lower end thereof. A plurality of interchangeable heads are adapted for attachment to the support plate. The heads each have a projection which projects through an opening formed in the support plate. A movable locking link, such as a spring, is mounted on the support plate and engages the projection for connecting the head to the support plate.
Inventors
- 👤 Franco Franchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:49
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/06; A63B53/0433; A63B53/0437; A63B53/047; A63B60/00; A63B60/52
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
279 words
In combination, a golf club and a plurality of interchangeable and uniquely lofted club heads, comprising an elongated club shaft having a support plate fixedly secured to said shaft adjacent the lower end thereof, said support plate being elongated and extending outwardly from said shaft with its longitudinal axis perpendicular to the line of flight, said support plate having opposed front and rear surfaces, the front surface defining a support surface which is oriented at an angle with respect to the axis of said shaft, said plurality of interchangeable heads individually adapted for attachment to said support plate, each of said heads having a front impact surface and a rear mounting surface adapted to be engaged with said support surface when the respective head is mounted on said support plate, the impact surfaces as provided on the different heads being oriented at different angles with respect to the axis of said shaft, and connecting means coacting between said heads and said support plate for permitting each head to be individually releasably connected to said support plate, said connecting means including an opening formed in said support plate and extending therethrough from said support surface to said rear surface and a projection fixedly secured to each of said heads and projecting outwardly from the mounting surface thereof, said projection having a length greater than said opening so as to project through said opening and beyond said rear surface when said head is mounted on said support plate, said connecting means further including a locking member movably mounted on said support plate adjacent the rear surface thereof and engageable with said projection for fixedly connecting the head to the support plate.
Claim 2
Dependent Claim
279 words
In combination, a golf club and a plurality of interchangeable and uniquely lofted club heads, comprising an elongated club shaft having a support plate fixedly secured to said shaft adjacent the lower end thereof, said support plate being elongated and extending outwardly from said shaft with its longitudinal axis perpendicular to the line of flight, said support plate having opposed front and rear surfaces, the front surface defining a support surface which is oriented at an angle with respect to the axis of said shaft, said plurality of interchangeable heads individually adapted for attachment to said support plate, each of said heads having a front impact surface and a rear mounting surface adapted to be engaged with said support surface when the respective head is mounted on said support plate, the impact surfaces as provided on the different heads being oriented at different angles with respect to the axis of said shaft, and connecting means coacting between said heads and said support plate for permitting each head to be individually releasably connected to said support plate, said connecting means including an opening formed in said support plate and extending therethrough from said support surface to said rear surface and a projection fixedly secured to each of said heads and projecting outwardly from the mounting surface thereof, said projection having a length greater than said opening so as to project through said opening and beyond said rear surface when said head is mounted on said support plate, said connecting means further including a locking member movably mounted on said support plate adjacent the rear surface thereof and engageable with said projection for fixedly connecting the head to the support plate.
Claim 3
Dependent Claim
55 words
A golf club according to claim 1, wherein said projection is provided with a sidewardly opening notch formed therein adjacent the free end thereof, and said locking member being movable relative to said support plate between a locking and a release position, said locking member being engaged in said notch when in said locking position.
Claim 4
Dependent Claim
26 words
A golf club according to claim 2, including resilient means associated with said locking member for normally resiliently urging said locking member into said locking position.
Claim 5
Dependent Claim
26 words
A golf club according to claim 2, wherein said locking member comprises an elongated spring member having a portion thereof continuously urged toward said locking position.
Claim 6
Dependent Claim
54 words
A golf club according to claim 2, wherein the notch as provided in said projection has an inclined surface which converges toward the rear surface of said support plate, and said locking member engaging said inclined surface when in said locking position for urging the head into tight clamping engagement with the support plate.
Claim 7
Dependent Claim
66 words
A golf club according to claim 5, wherein said locking member includes an elongated spring arm which is adapted to engage said notch and which is normally resiliently urged into said locking position, said spring arm having the free end thereof projecting outwardly beyond said notch so as to be engageable by the finger of a golfer to permit movement of same into the release position.
Claim 8
Dependent Claim
65 words
A golf club according to claim 5, wherein said support plate has a second opening extending therethrough between the front and rear surfaces thereof, and each of said heads having a second projection fixedly secured thereto and projecting outwardly from the mounting surface thereof, said second projection being adapted to extend into said second opening when the respective head is mounted on the support plate.
Claim 9
Dependent Claim
65 words
A golf club according to claim 1, wherein said support plate has a second opening extending therethrough between the front and rear surfaces thereof, and each of said heads having a second projection fixedly secured thereto and projecting outwardly from the mounting surface thereof, said second projection being adapted to extend into said second openiNg when the respective head is mounted on the support plate.
Claim 10
Dependent Claim
53 words
A golf club according to claim 1, wherein said projection has a hole formed therein and extending transversely therethrough, said hole being located near the free end of the projection, and said locking member including a straight portion adapted to extend through said hole for fixedly connecting said head to said support plate.
Claim 11
Dependent Claim
54 words
A golf club according to claim 9, wherein said locking member is rotatably supported on said support plate and has an eccentric disposed in engagement with said support plate for causing the head to be moved into clamping engagement with the support plate upon rotation of the locking member relative to the support plate.
Claim 12
Dependent Claim
87 words
A golf club according to claim 10, wherein said support plate has a second opening extending therethrough and each head having a second projection fixed thereto and projecting outwardly from the mounting surface thereof, said second projection being adapted to extend through said second opening, said second projection also having a hole formed therein and extending transversely therethrough substantially in alignment with the hole formed in said first-mentioned projection, and the straight portion of said locking member extending through the holes formed in both of said projections.
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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) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |