US3976298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dart
Assignee: Individual
•
Filing: 1975-06-16
•
Granted: 1976-08-24
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Expires: 1995-06-16
Abstract
Abstract A manually propellable dart for propelling toward a target or like member, and which dart comprises a pin section having an elongate shaft with one pointed end for impact into a target or like member. The dart includes an elongate main body with a fore body section and an aft body section. The shaft of the pin section has a hub mounted thereon and the shaft has an enlarged end opposite the pointed end which is removably retained in a recess formed within the aft body section. The main body is designed so that it is capable of being engaged by a user for projection toward the target or like member. A tail fin member is secured to the end of the elongate body opposite the pointed end. A forward end of the fore body section is provided with a sleeve portion which extends over the hub and has a rear abutment surface which engages a forward abutment surface on the aft body section. Moreover, a reduced boss on the rearward end of the fore body section removably engages the side wall of the recess in the aft end. Thus, when the pointed end of the pin section engages a target or like member, the enlarged head will engage the rear wall of the recess to cause an initial separation between the elongate fore section and the aft body section. In this way, the forward movement of the dart will cause a forward inertial movement of the fore body section causing removal of the boss from the recess, and thereby permitting complete separation between the fore section and the aft body section.
Inventors
- 👤 LeRay V. Hinchman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:16
CPC Classifications
F; F42; F42B; F42B6/00; F42B6/003
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
161 words
A dart comprising: a. an elongated body member having a first end and a second end and having a recess formed in said first end, b. a pin section having 1. a central shaft extending normal with respect to said body member, 2. a pointed end member on an end of said shaft mast distal to said recess and capable of being propelled into a target or like member, 3. connecting means including a head which is substantially diametrally enlarged with respect to said shaft and on the opposite end thereof with respect to said pointed end member, said head being sized and shaped so that it is capable of extending into said recess for retentively, but removably, holding said pin section to said body member, c. and an automatic disconnect means including a sleeve member extendible over said central shaft to disconnect said body member from said pin section when said pin section impacts on said target or like member.
Claim 2
Dependent Claim
161 words
A dart comprising: a. an elongated body member having a first end and a second end and having a recess formed in said first end, b. a pin section having 1. a central shaft extending normal with respect to said body member, 2. a pointed end member on an end of said shaft mast distal to said recess and capable of being propelled into a target or like member, 3. connecting means including a head which is substantially diametrally enlarged with respect to said shaft and on the opposite end thereof with respect to said pointed end member, said head being sized and shaped so that it is capable of extending into said recess for retentively, but removably, holding said pin section to said body member, c. and an automatic disconnect means including a sleeve member extendible over said central shaft to disconnect said body member from said pin section when said pin section impacts on said target or like member.
Claim 3
Dependent Claim
21 words
The dart of claim 1 further characterized in that tail fins are located on the second end of said body section.
Claim 4
Dependent Claim
22 words
The dart of claim 1 further characterized in that tail fins are removably located on the second end of said body section.
Claim 5
Dependent Claim
65 words
The dart of claim 1 further characterized in that said body member comprises a fore body section and an aft body section, said recess being formed in said aft body section, said pin section comprises said pointed end member and said shaft extending outwardly therefrom, and which shaft extends through said fore body section and which fore body section forms part of said disconnect means.
Claim 6
Dependent Claim
206 words
A hand propelled projectile comprising: a. an elongate body member comprised of: 1. a fore body section having a forward end and a rearward end, 2. an extended portion in the rearward end of said fore body section, 3. means forming a central bore in said fore body section, 4. an aft body section having a forward end and a rearward end, and having a recess formed in the forward end of said aft body section, and capable of receiving the extended portion of said fore body section in retentively, but removable, engagement therewith, b. a pin section comprised of: 1. a main shaft, 2. a pointed end on one end of said main shaft capable of being propelled into a target or like member, 3. a an enlarged head on the opposite end of said shaft with respect to said pointed end and being disposed in said recess, 4. said main shaft extending through the central bore in said fore body section and said fore body section being shiftable with respect to said shaft when said pointed end engages a relatively hard surface causing disengagement between said extended portion and said recess to permit separation of said aft body section from said fore body section.
Claim 7
Dependent Claim
206 words
A hand propelled projectile comprising: a. an elongate body member comprised of: 1. a fore body section having a forward end and a rearward end, 2. an extended portion in the rearward end of said fore body section, 3. means forming a central bore in said fore body section, 4. an aft body section having a forward end and a rearward end, and having a recess formed in the forward end of said aft body section, and capable of receiving the extended portion of said fore body section in retentively, but removable, engagement therewith, b. a pin section comprised of: 1. a main shaft, 2. a pointed end on one end of said main shaft capable of being propelled into a target or like member, 3. a an enlarged head on the opposite end of said shaft with respect to said pointed end and being disposed in said recess, 4. said main shaft extending through the central bore in said fore body section and said fore body section being shiftable with respect to said shaft when said pointed end engages a relatively hard surface causing disengagement between said extended portion and said recess to permit separation of said aft body section from said fore body section.
Claim 8
Dependent Claim
14 words
The projectile of claim 5 further characterized in that said projectile is a dart.
Claim 9
Dependent Claim
29 words
The projectile of claim 5 further characterized in that a hub is formed on said main shaft and said fore body section is in sliding contact with said hub.
Claim 10
Dependent Claim
52 words
The projectile of claim 5 further characterized in that said head extends further into said recess upon said impact to cause an initial separation between said fore and aft body sections and that the inertial movement of said projectile causes movement of said fore body section away from said aft body section.
Claim 11
Dependent Claim
23 words
The projectile of claim 5 further characterized in that tail fins are removably connected to the second end of said aft body section.
Claim 12
Dependent Claim
244 words
A dart comprising: a. an elongated body member comprised of: 1. a fore body section having an outer surface and a first transverse end and a second transverse end, 2. an aft body section having an outer surface and a first transverse end and a second transverse end and having a recess in said first transverse end, 3. the second end of the fore body section and the first end of the aft body section being abutable and the outer surfaces of both said sections being of substantially the same size and shape so as to be substantially contiguous in the region of abutment, b. a pin section having: 1. a central shaft extending normal to said body member and extending through said fore body section, 2. a pointed end member on an end of said shaft distal to said recess and capable of being propelled into a target or like member, 3. connecting means including a head which is substantially diametrally enlarged with respect to said shaft and on the opposite end thereof with respect to said pointed end member, said head being sized and shaped so that it is capable of extending into said recess for retentively, but removably, holding said pin section to said body member, c. and an automatic disconnect means, including at least in part said fore body section, to disconnect said body member from said pin section when said pin section impacts on said target or like member.
Claim 13
Dependent Claim
244 words
A dart comprising: a. an elongated body member comprised of: 1. a fore body section having an outer surface and a first transverse end and a second transverse end, 2. an aft body section having an outer surface and a first transverse end and a second transverse end and having a recess in said first transverse end, 3. the second end of the fore body section and the first end of the aft body section being abutable and the outer surfaces of both said sections being of substantially the same size and shape so as to be substantially contiguous in the region of abutment, b. a pin section having: 1. a central shaft extending normal to said body member and extending through said fore body section, 2. a pointed end member on an end of said shaft distal to said recess and capable of being propelled into a target or like member, 3. connecting means including a head which is substantially diametrally enlarged with respect to said shaft and on the opposite end thereof with respect to said pointed end member, said head being sized and shaped so that it is capable of extending into said recess for retentively, but removably, holding said pin section to said body member, c. and an automatic disconnect means, including at least in part said fore body section, to disconnect said body member from said pin section when said pin section impacts on said target or like member.
Claim 14
Dependent Claim
22 words
The dart of claim 15 further characterized in that tail fins are located on the second end of said aft body section.
Claim 15
Dependent Claim
186 words
A hand propelled projectile comprising: a. an elongate body member comprised of: 1. a fore body section having a forward end and a rearward end, 2. a first coupling element at the rearward end of said fore body section, 3. means forming a central bore in said fore body section, 4. an aft body section having a forward end and a rearward end, and having a second coupling element at the forward end of said aft body section, and capable of being in coupling engagement with said first coupling element so that said fore body section is in retentive, but removable, engagement with said aft body section, b. a pin section comprised of: 1. a main shaft, 2. a pointed end on one end of said main shaft capable of being propelled into a garget or like member, 3. an enlarged head on the opposite end of said shaft with respect to said pointed end and being disposed in retentive, but removable, coupling arrangement with a portion of said second coupling element when said first coupling element is in coupling engagement with said second coupling element,
Claim 16
Dependent Claim
186 words
A hand propelled projectile comprising: a. an elongate body member comprised of: 1. a fore body section having a forward end and a rearward end, 2. a first coupling element at the rearward end of said fore body section, 3. means forming a central bore in said fore body section, 4. an aft body section having a forward end and a rearward end, and having a second coupling element at the forward end of said aft body section, and capable of being in coupling engagement with said first coupling element so that said fore body section is in retentive, but removable, engagement with said aft body section, b. a pin section comprised of: 1. a main shaft, 2. a pointed end on one end of said main shaft capable of being propelled into a garget or like member, 3. an enlarged head on the opposite end of said shaft with respect to said pointed end and being disposed in retentive, but removable, coupling arrangement with a portion of said second coupling element when said first coupling element is in coupling engagement with said second coupling element,
Claim 17
Dependent Claim
58 words
said main shaft extending through the central bore in said fore body section and said fore body section being shiftable with respect to said shaft when said pointed end engages a relatively hard surface causing disengagement between said first coupling element and second coupling element to permit separation of said aft body section from said fore body section.
Claim 18
Dependent Claim
58 words
said main shaft extending through the central bore in said fore body section and said fore body section being shiftable with respect to said shaft when said pointed end engages a relatively hard surface causing disengagement between said first coupling element and second coupling element to permit separation of said aft body section from said fore body section.
Claim 19
Dependent Claim
29 words
The projectile of claim 12 further characterized in that a hub is formed on said main shaft and said fore body section is in sliding contact with said hub.
Claim 20
Independent Claim
163 words
A method of using a projectile of the type projected by manual action into a target or like member, and which projectile comprises a fore body section and an aft body section connectable to said fore body section with a shaft extending through said fore body section and having a pointed end thereon, said method comprising: a. propelling said projectile toward said target or like member, b. causing an impact between said target or like member and a pointed end on said shaft, c. causing an enlarged head on said shaft opposite to said pointed end to shift and impact within a recess in said aft body section thereby causing an initial impact separation between said fore body section and said aft body section of said projectile upon impact, and d. causing an inertial complete separation between said fore body section and said aft body section after said initial impact due in part to inertial movement of the then separated fore body section.
Claim 21
Independent Claim
163 words
A method of using a projectile of the type projected by manual action into a target or like member, and which projectile comprises a fore body section and an aft body section connectable to said fore body section with a shaft extending through said fore body section and having a pointed end thereon, said method comprising: a. propelling said projectile toward said target or like member, b. causing an impact between said target or like member and a pointed end on said shaft, c. causing an enlarged head on said shaft opposite to said pointed end to shift and impact within a recess in said aft body section thereby causing an initial impact separation between said fore body section and said aft body section of said projectile upon impact, and d. causing an inertial complete separation between said fore body section and said aft body section after said initial impact due in part to inertial movement of the then separated fore body section.
Claim 22
Dependent Claim
39 words
The method of claim 14 further characterized in that a tail fin section is on said aft body section and said aft body section and tail fin section separate from said fore body section upon said inertial complete separation.
Claim 23
Dependent Claim
15 words
The method of claim 14 further characterized in that said projectile is a hand-held dart.
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) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |