Rear deploying broadhead

Abstract

The present invention is a rear-deploying broadhead with an outer housing, an inner spine, and at least two blades pivotally attached to the inner spine, with the inner spine having a first end with a plunger end, and a second end which is pointed. The outer housing has a first closed end that terminates proximal the body to an arrow shaft and a second end which is open. The inner spine is shorter than the outer housing and disposed in the center of the outer housing, with the plunger end seated inside the outer housing adjacent the first end of the outer housing. The two blades are configured to deploy through the open lateral sides of the outer housing upon movement of the inner spine toward the end of the outer housing. The broadhead has an coating of latex until the broadhead impacts a target, at which point the blades deploy through the coating.

Claims

1. A rear-deploying broadhead comprising a body attachable to an arrow shaft, said body comprising an outer housing, an inner spine, and at least two blades pivotally attached to said inner spine, wherein said inner spine has a first end with a plunger end, and a second end with a pointed end, wherein the outer housing comprises a first closed end that terminates proximal to a structure for attaching the body to an arrow shaft and a second end which is open, wherein said outer housing comprises two lateral sides which are substantially open adjacent the second end of the outer housing, wherein said outer housing further comprises a front side and a rear side which both terminate at the second end of the outer housing with a pointed end, wherein said inner spine is shorter than the outer housing and is substantially disposed in a center of said outer housing, with said plunger end seated snuggly but movably inside the outer housing adjacent the first end of said outer housing, wherein, in a nondeployed state, the second end of the inner spine extends slightly beyond a furthest extent of the second end of the outer housing, and wherein said broadhead further comprises an external coating of latex having an impact value allowing said coating to retain until the broadhead impacts a target, at which point the blades deploy through the external coating.

2. The broadhead of claim 1, wherein said at least two blades pivotally attached to the inner spine are in a retracted position in a nondeployed state.

3. The broadhead of claim 2, wherein the at least two blades are held in a retracted position in a nondeployed state by friction, and are configured to deploy through the substantially open lateral sides of the outer housing upon movement of the inner spine toward the first end of the outer housing.

4. The broadhead of claim 1, wherein said two blades are each pivotally attached to said inner spine at two points on the inner spine.

5. The broadhead of claim 4, wherein said two blades are each pivotally attached to said inner spine at least at a point approximately midway between the two ends of said inner spine.

6. The broadhead of claim 5, wherein said two blades are each pivotally attached to said inner spine at least at a point proximal to a level of a termination of the second end of the outer housing.

7. The broadhead of claim 5, wherein said two blades are pivotally attached at two points on the inner spine, with a first attachment approximately midway between the two ends of said inner spine and a second attachment proximal to a level of a termination of the second end of the outer housing.

8. A rear-deploying broadhead comprising an outer housing, an inner spine, and at least two blades pivotally attached to said inner spine, wherein said inner spine has a first end with a plunger end, and a second end distal to said plunger end, wherein said outer housing comprises a first closed end that terminates with a structure that is attachable to an arrow shaft and a second end which is open, wherein said outer housing comprises two lateral sides with which are substantially open adjacent the second end of the outer housing, wherein said outer housing further comprises a front side and a rear side which both terminate at the second end of the outer housing, wherein said inner spine is shorter than the outer housing and is substantially disposed in a center of said outer housing, with said plunger end seated snuggly but movably inside the outer housing adjacent the first end of said outer housing, wherein, in a nondeployed state, the second end of the inner spine extends slightly beyond a furthest extent of the second end of the outer housing, wherein the at least two blades are pivotally attached to the inner spine and are retained in a retracted position in a nondeployed state, wherein, upon said broadhead striking a target with an extended point of the inner spine striking first, said inner spine is pushed into the outer housing toward the first end of said housing in a plunger-like manner, with said blades deploying through the openings in the lateral sides of the outer housing when the second end of the inner spine is depressed past the second ends of the front side and rear side of the outer housing, and, wherein said broadhead further comprises an external coating of latex having an impact value allowing said coating to retain until the broadhead impacts a target, at which point the blades deploy through the external coating.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

Brief Description of the Several Views of the Drawings

(1) These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings wherein:

(2) FIG. 1 is an exploded plan view of an embodiment of the invention in a deployed position, not showing external coating.

(3) FIG. 2 is an isometric view of an embodiment of the invention in a deployed position not showing external coating.

(4) FIG. 3 is a plan view of an embodiment of the invention in a deployed position, not showing external coating.

(5) FIG. 4 is a plan view of an embodiment of the invention in a nondeployed position from a lateral perspective, not showing external coating.

(6) FIG. 5 is a photograph of an embodiment of the present invention in a nondeployed position.

REFERENCE NUMERALS IN THE DRAWINGS

(7) 1 Body of Broadhead 2 Outer Housing 3 Inner Spine 4 Blades 5 Plunger (First) End of Spine 6 Pointed (Second) End of Spine 7 Closed (First) End of Housing 8 Structure for Attachment to Arrow Shaft 9 Open (Second) End of Housing 10 Lateral Side of Housing 11 Front Side of Housing 12 Rear Side of Housing 13 External coating

DETAILED DESCRIPTION OF VARIOUS EMBODIMENTS OF THE INVENTION

(8) Various embodiments of the invention are described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown in the figures. Indeed, these inventions may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements.

(9) A first embodiment of the present invention is shown in detail in FIGS. 1-4. FIG. 1 shows an exploded plan view of an embodiment of the broadhead of the present invention in a deployed position. In this nonlimiting example, the body 1 comprises an outer housing 2. An inner spine 3 is arranged to be position inside the outer housing 2. At least two blades 4 are positioned to be pivotally attached to the inner spine 3. The inner spine has a first end 5 which acts a plunger end. The inner spine has a second end 6 which is pointed. The outer housing 2 has a first closed end 7 that terminates proximal to a structure 8 for attaching the body to an arrow shaft. The outer housing has a second end 9 which is open. The outer housing may also comprise two lateral sides 10 with are substantially open adjacent the second end 9 of the outer housing 2. The outer housing has a front side 11 and a rear side 12 which both terminate at the second end 9 of the outer housing with a pointed end. The inner spine 3 is shorter than the outer housing 2 and substantially disposed in the center of the outer housing, with the plunger end 5 seated snuggly but movably inside the outer housing adjacent the first end of the outer housing. In a nondeployed state, the second end of the inner spine extends slightly beyond the furthest extent of the second end of the outer housing.

(10) FIG. 2 is an isometric view of an embodiment of the invention in a deployed position. FIG. 3 is a plan view of an embodiment of the invention in a deployed position. FIG. 4 is a plan view of an embodiment of the invention in a nondeployed position from a lateral perspective.

(11) FIG. 5 shows the present invention in a nondeployed state, showing the external coating.

(12) The present invention is a rear-deploying broadhead comprising a body attachable to an arrow shaft. The broadhead comprises rear-deploying blades which are retracted toward the body of the broadhead and may be retained in recesses within the body of the broadhead during the flight of the arrow. The blades are retained in place by an external coating of latex or similar material. Upon impact with the quarry, the blades deploy through the external coating.

(13) In a preferred embodiment, the body comprises an outer housing, an inner spine, and at least two blades pivotally attached to said inner spine, with the inner spine having a first end with a plunger end, and a second end which is pointed. The outer housing comprises a first closed end that terminates proximal to a structure for attaching the body to an arrow shaft and a second end which is open. The outer housing may also comprise two lateral sides with are substantially open adjacent the second end of the outer housing, and the outer housing may further comprise a front side and a rear side which both terminate at the second end of the outer housing with a pointed end. The inner spine may be shorter than the outer housing and substantially disposed in the center of the outer housing, with the plunger end seated snuggly but movably inside the outer housing adjacent the first end of the outer housing. In a nondeployed state, the second end of the inner spine extends slightly beyond the furthest extent of the second end of the outer housing. The blades of the broadhead are retracted toward the body of the broadhead and may be retained in recesses within the body of the broadhead during the flight of the arrow. The blades are retained in place by an external coating of latex or similar material. Upon impact with the quarry, the blades deploy through the external coating.

(14) In a further embodiment, the present invention is a rear-deploying broadhead which has a body with an outer housing, an inner spine, and at least two blades pivotally attached to said inner spine, with the inner spine having a first end with a plunger end, and a second end which is pointed. The outer housing comprises a first closed end that terminates proximal to a structure for attaching the body to an arrow shaft and a second end which is open. The outer housing may also comprise two lateral sides with are substantially open adjacent the second end of the outer housing, and the outer housing may further comprise a front side and a rear side which both terminate at the second end of the outer housing with a pointed end. The inner spine may be shorter than the outer housing and substantially disposed in the center of the outer housing, with the plunger end seated snuggly but movably inside the outer housing adjacent the first end of the outer housing. In a nondeployed state, the second end of the inner spine extends slightly beyond the furthest extent of the second end of the outer housing, and the at least two blades pivotally attached to the inner spine are in a retracted position in the nondeployed state. The blades of the broadhead are retracted toward the body of the broadhead and may be retained in recesses within the body of the broadhead during the flight of the arrow. The blades are retained in place by an external coating of latex or similar material. Upon impact with the quarry, the blades deploy through the external coating.

(15) In a further embodiment, the invention comprises at least two blades that are held in the retracted position in a nondeployed state by friction, and are configured to deploy through the lateral sides of the outer housing when the movement of the inner spine commences toward the first end of the outer housing. The blades are retained in place by an external coating of latex or similar material. Upon impact with the quarry, the blades deploy through the external coating.

(16) In a further embodiment, the invention comprises at least two blades that are each pivotally attached to the inner spine at two points on the inner spine. In a further embodiment, the at least two blades are each pivotally attached to the inner spine at least at a point approximately midway between the two ends of the inner spine. In a further embodiment, the at least two blades are each pivotally attached to the inner spine at least at a point proximal to the level of the termination of the second end of the outer housing. In a further preferred embodiment, the at least two blades are pivotally attached at two points on the inner spine, with the first attachment approximately midway between the two ends of said inner spine and the second attachment proximal to the level of the termination of the second end of the outer housing. The blades are retained in place by an external coating of latex or similar material. Upon impact with the quarry, the blades deploy through the external coating.

(17) In another embodiment, the present invention is a rear-deploying broadhead comprising an outer housing, an inner spine, and at least two blades pivotally attached to the inner spine. The inner spine has a first end with a plunger end, and a second end distal to the plunger end. The outer housing comprises a first closed end that terminates with a structure that is attachable to an arrow shaft and a second end which is open. The outer housing also has two lateral sides with are substantially open adjacent the second end of the outer housing. The outer housing further has a front side and a rear side which both terminate at the second end of the outer housing. The inner spine is shorter than the outer housing and is substantially disposed in the center of the outer housing, with the plunger end of the inner spine seated snuggly but movably inside the outer housing adjacent the first end of said outer housing. In a nondeployed state, the second end of the inner spine extends slightly beyond the furthest extent of the second end of the outer housing. The at least two blades are pivotally attached to the inner spine and are retained in a retracted position in a nondeployed state. When the broadhead strikes a target with the extended point of the inner spine striking first, the inner spine is pushed into the outer housing toward the first end of the housing in a plunger-like manner, with the blades deploying through the openings in the lateral sides of the outer housing when the second end of the inner spine is depressed past the second ends of the front side and rear side of the outer housing. The blades are retained in place by an external coating of latex or similar material. Upon impact with the quarry, the blades deploy through the external coating.

(18) In another embodiment, the present invention is a rear-deploying broadhead that has a body attachable to an arrow shaft. The body has an inner spine and an outer housing that has a first end proximal to the attachment to the arrow shaft and a second end. The inner spine is disposed within the outer housing when the broadhead is in a nondeployed position. The inner spine comprises a first plunger end and a second pointed end, wherein the pointed end is disposed in a position forward to the second end of the outer housing, and situated substantially in the center of the outer housing and movable within the outer housing in a plunger-like manner. The first plunger end of the inner spine is seated snuggly toward the first end of the outer housing. At least two blades are pivotally attached to the inner spine.

(19) In a further embodiment, the present invention is a rear-deploying broadhead that has a body attachable to an arrow shaft. The body has an inner spine and an outer housing that has a first end proximal to the attachment to the arrow shaft and a second end. The broadhead comprises a structure proximal to the first end of the outer housing that is threadably attachable to an arrow shaft.

(20) In a further embodiment, the present invention is a rear-deploying broadhead that has a body attachable to an arrow shaft. The body has an inner spine and an outer housing that has a first end proximal to the attachment to the arrow shaft and a second end. The inner spine is disposed within the outer housing when the broadhead is in a nondeployed position. The inner spine comprises a first plunger end and a second pointed end, wherein the pointed end is disposed in a position forward to the second end of the outer housing, and situated substantially in the center of the outer housing and movable within the outer housing in a plunger-like manner. The first plunger end of the inner spine is seated snuggly toward the first end of the outer housing. At least two blades are pivotally attached to the inner spine. The blades are folded inward by means of additional pivots when the broadhead is in a nondeployed position, and the blades are pivotally attached to the inner spine proximal to the level of the termination of the second end of the outer housing. In a further embodiment, the outer housing has slots there-through adapted for deployment of blades. In another embodiment, the outer housing comprises recesses for the frictional retraction of the non-deployed blades.

(21) While the foregoing written description of the invention enables one of ordinary skill to make and use what is considered presently to be the best mode thereof, those of ordinary skill will understand and appreciate the existence of variations, combinations, and equivalents of the specific embodiment, method, and examples herein. The invention should therefore not be limited by the above described embodiment, method, and examples, but by all embodiments and methods within the scope and spirit of the invention as claimed. Moreover, the terms “consisting”, “comprising” and other derivatives from the term “comprise” are intended to be open-ended terms that specify the presence of any stated features, elements, steps, or components, and are not intended to preclude the presence or addition of one or more other features, elements, integers, steps, components, or groups thereof. Moreover, Applicants have endeavored in the present specification and drawings to draw attention to certain features of the invention, it should be understood that the Applicant claims protection in respect to any patentable feature or combination of features referred to in the specification or drawings. The drawings are provided to illustrate features of the invention, but the claimed invention is expressly not limited to the illustrated embodiments.