US3966183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article including an endless coil spring
Assignee: Individual
•
Filing: 1974-04-26
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Granted: 1976-06-29
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Expires: 1994-04-26
Abstract
Abstract An endless coil spring whose convolutions surround a substantially circular line which extends through the hollow interior of the coil spring. This line surrounds inner portions of the convolutions which press against each other. The convolutions have outer portions which surround the line and which are spaced from each other with these outer portions of the convolutions circumferentially offset with respect to the inner portions thereof.
Inventors
- 👤 Salvador Escobar Mayer, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:42
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/045
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
159 words
An article comprising an endless coil spring of substantially circular configuraton having, only as a result of the inherent resiliency of the coil spring itself, convolutions wound around a substantially circular line which extends through the hollow interior of the endless coil spring, said convolutions having inner portions which press against each other and determine the inner diameter of the endless coil spring and outer portions which are spaced from each other and determine the outer diameter of the endless coil spring, said outer portions of said convolutions being circumferentially offset with respect to the inner portions thereof, when the coil spring is not acted upon by any outside force and responds only to its inherent resiliency, so that the outer diameter of the coil spring is smaller than the outer diameter which it would have if the convolutions were arranged substantially radially with respect to the center of a circle along which said line extends at least substantially.
Claim 2
Dependent Claim
159 words
An article comprising an endless coil spring of substantially circular configuraton having, only as a result of the inherent resiliency of the coil spring itself, convolutions wound around a substantially circular line which extends through the hollow interior of the endless coil spring, said convolutions having inner portions which press against each other and determine the inner diameter of the endless coil spring and outer portions which are spaced from each other and determine the outer diameter of the endless coil spring, said outer portions of said convolutions being circumferentially offset with respect to the inner portions thereof, when the coil spring is not acted upon by any outside force and responds only to its inherent resiliency, so that the outer diameter of the coil spring is smaller than the outer diameter which it would have if the convolutions were arranged substantially radially with respect to the center of a circle along which said line extends at least substantially.
Claim 3
Dependent Claim
25 words
The article of claim 1 and wherein the coil spring is made of a springy wire which is coated with a material which resists corrosion.
Claim 4
Dependent Claim
16 words
The combination of claim 2 and wherein the material gives the coil spring a white color.
Claim 5
Dependent Claim
16 words
The combination of claim 2 and wherein the material gives the coil spring a gold color.
Claim 6
Dependent Claim
17 words
The article of claim 1 including a device connected to and carried by the endless coil spring.
Claim 7
Dependent Claim
12 words
The combination of claim 5 and wherein the device is a watch.
Claim 8
Dependent Claim
63 words
The article of claim 1 and including an elongated body on which the endless coil spring is adapted to be positioned in a stretched condition surrounding the body, said body having an exterior tapered surface of a low coefficient of friction the size and configuration of which enables the spring to automatically contract while displacing itself toward a smaller end of the body.
Claim 9
Dependent Claim
60 words
The combination of claim 7 and wherein said body terminates in a small end the size of which is still large enough to provide tension in the endless coil spring when it is situated at the latter end of said body so that the coil spring will propel itself beyond the small end of said body to form a projectile.
Claim 10
Dependent Claim
31 words
The article of claim 1 and wherein each convolution is of a substantially circular configuration and has a diameter which is approximately twice the inner diameter of the endless coil spring.
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) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |