US3831285A - Lens cover and operating button assembly - Google Patents

Lens cover and operating button assembly Download PDF

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Publication number
US3831285A
US3831285A US00335242A US33524273A US3831285A US 3831285 A US3831285 A US 3831285A US 00335242 A US00335242 A US 00335242A US 33524273 A US33524273 A US 33524273A US 3831285 A US3831285 A US 3831285A
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US
United States
Prior art keywords
collar
lid
lever
shoulder
lens cover
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00335242A
Inventor
E Vissing
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Michaels of Oregon Co
BUTLER CREEK CO
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BUTLER CREEK CO
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Application filed by BUTLER CREEK CO filed Critical BUTLER CREEK CO
Priority to US00335242A priority Critical patent/US3831285A/en
Application granted granted Critical
Publication of US3831285A publication Critical patent/US3831285A/en
Anticipated expiration legal-status Critical
Assigned to HECKERMAN, WILLIAM L. reassignment HECKERMAN, WILLIAM L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BUTLER CREEK CORPORATION
Assigned to MICHAELS OF OREGON CO. reassignment MICHAELS OF OREGON CO. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HECKERMAN, WILLIAM L., SOURDOUGH CREEK, INC.
Assigned to FIRST SOURCE FINANCIAL LLP reassignment FIRST SOURCE FINANCIAL LLP PATENT AGREEMENT Assignors: MICHAELS OF OREGON CO.
Assigned to MICHAELS OF OREGON CO. reassignment MICHAELS OF OREGON CO. RELEASE OF PATENT SECURITY INTEREST Assignors: FIRST SOURCE FINANCIAL LLP
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G1/00—Sighting devices
    • F41G1/38—Telescopic sights specially adapted for smallarms or ordnance; Supports or mountings therefor
    • F41G1/383—Protection means therefor
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight

Definitions

  • a lens cover for the lens of a telescope embodies a collar of polyethylene having a high degree of flexibility which is mounted over the end of the telescope.
  • the collar has a melting point of about 300 F.
  • the collar has ears integral therewith and a pivot pin on which a stiff lid is pivoted.
  • the collar has an interior annular shoulder, an exterior shoulder, and a shallow annular extension beyond the exterior shoulder over which the lid snaps, the extension and shoulder having a cooperating rib and groove to hold the lid closed.
  • the collar has a thickened portion spaced circumferenctially of the collar from the ears.
  • An operating button and lever unit of another synthetic resin product DuPont Zytel lOl having a melting point of 700 F is coated with a mold release material and molded in the thickened portion of the collar and has an extension projecting above the exterior shoulder for operating the lever. The material of the enlargement fills into a central aperture of the lever to provide a pivot for it.
  • this invention istto provide the lid'and collar with a complete sealing connection and. a lift lever housed in the collarzto break'the sealing connection.
  • this invention provides a circular lever body molded in the collar with one projection underlying the lid and another projection-projecting axially of the collar alongsidethe'rlid edgeto-turn the. circular lever body to lift thefirst projection andpush the lid away fromthe collar.
  • FIG. 1 is a side view. of 'airifle telescope equipped with lens covers embodyingthe invention.
  • FIG. 2. is an end view of the lens cover.
  • FIG. 3 is asectional viewonthezline 3-3 of FIG. 2.
  • FIG. 4 is an end view of theslens coverlookingrearward from the lensbarrel showing the structure ofthe collar.
  • FIG. is an enlarged sectional viewonathe line 55 of FIG. 2.
  • FIG. 7 is an enlarged sectional viewon theline 77 of FIG. 1.
  • the line 77 is also indicated on FIG. '5.
  • FIG. 1 the lens barrel lofa rifletelescope has both ends provided withcovers indicated at 2.
  • the covers 2 are identical and FIGS. 2 to 7 show the details of each cover 2.
  • the two major parts of the cover are a lid 3 which is of a stiff polyethylene material and a-hollow collar 4 which is a resilient polyethylene resin which is capable of stretching slightly to go over thelens barrel 1.
  • This collar has a relatively low melting. point, about 300 F.
  • the lid 3 has an annularflange 5'which hasa groove 6 therein to receive a rib 7 in the groove16 and hold the lid 3 on the collar 4.
  • Rib 7 is formed about an annular extension 8 of collar 4.
  • a hinge sleeve 9 is formed on the lid and extends'between hinge ears 10 on the collar 4. The sleeve 9 and ears 10 receive a hinge pin 11 to connect them.
  • a spring 12 has one end'l3 embedded in the sleeve 9 and is wrapped around the pin 11 with its free endl4 resting on the collar 4 between the cars 10. The spring 12. is woundunder tension so that it tends to swing the lid 3 open away from the collar 4.
  • Spring 12. is designed that when embedded within sleeve 9, it has sufficient coiled force to quickly open the released lid 3 and to then holdlid 3 above collar 4 .2 in a substantially horizontalposition under slight tension. This open position is tdefined by abutment of the side edges of lid 3 against the ears l0, and is shown in dashed linesin FIG. 1.
  • spring 12 is totally enclosed within the assembly when the lid 3 is closed, protecting the metal spring from weather conditions and eliminating the possibility of accidental snagging of the relatively light spring wire.
  • the collar 4 has thick wall portions 4d at the cars 10 and opposite them. In.
  • the lid 3 has a lift tab 15 located about (counterclockwise with respect to FIG. 2) around the lid which seats in a thickened wall portion 4d on the collar 4 andwhich, when so seated, is flush'withthe shoulder .atedge 4c of'the collar 4.
  • the projection 18 lifts the tab 15 to break the lid 3 away from the rib 7.
  • the spring 12 then snaps the lid wide open.
  • the lift lever 16 is madeof a-hardmaterial such as the synthetic resin product made by the DuPont Company and sold under their trade name Zytel 101. The melting point of this material is about 700 F. This makes it possible to coat the finished lift lever 16 with a moldrelease compoundand mount it in the die for the collar 4 in a position so that when the collar 4 is molded, the thickened wall portion 4d will cover the lever and form a pivot pin 20 for the lever 16. Upon removal from the die, the collar 4 has the lever 16 pivoted therein in the position shown in FIG. 5. The pivot pin 20 prevents the lever from snapping out of its socket inthe wall portion 4d.
  • the integral pivot pin 20 molded through lift lever 16 is a most important feature of this disclosure. It has been found impractical to use separate hinge pins in soft molded plastic materials. First, the fabrication step is .costly. Secondly, it is subject to being torn from the flexible material or broken when subjected to outdoor use by sportsmen. This is overcome by injection molding of pivot pin 20 under high pressure integrally with the molding of collar 4 to provide one complete molded article.
  • lens covers for rifle telescopes may be subjected to all sorts of weather, mud, rain, and snow, saltwater and freezing. By reason of the construction just described, the lens covers are and remain substantially impervious to the weather attacks and keep the lenses clear.
  • a lens cover comprising: a resilient collar adapted to be stretched over a lens barrel,
  • the collar grooved, to hold the lid on the collar has a thickened wall adjacent to the hinge point with a push tab on the lid remote from the hinge point the lid, and opposite the hinge point with thin walls adapted when pushed away from the collar to retherebetween, and lease the lid flange from the collar; the collar having a thick end all around at the flanged a lift lever pivotally embedded in the collar and havend, forming a stop shoulder for the lens cover.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Telescopes (AREA)

Abstract

A lens cover for the lens of a telescope embodies a collar of polyethylene having a high degree of flexibility which is mounted over the end of the telescope. The collar has a melting point of about 300* F. The collar has ears integral therewith and a pivot pin on which a stiff lid is pivoted. The collar has an interior annular shoulder, an exterior shoulder, and a shallow annular extension beyond the exterior shoulder over which the lid snaps, the extension and shoulder having a cooperating rib and groove to hold the lid closed. The collar has a thickened portion spaced circumferenctially of the collar from the ears. An operating button and lever unit of another synthetic resin product (DuPont Zytel 101) having a melting point of 700* F is coated with a mold release material and molded in the thickened portion of the collar and has an extension projecting above the exterior shoulder for operating the lever. The material of the enlargement fills into a central aperture of the lever to provide a pivot for it.

Description

United States Patent [191 Vissing [451 Aug. 27, 1974 LENS COVER AND OPERATING BUTTON ASSEMBLY I Ellin D. Vissing, Idaho Falls, Idaho [73] Assignee: Butler Creek Company, Jackson,
Wyo.
22 Filed: Feb. 23, 1973 21 App]. No: 335,242
[75 Inventor:
[52] us. Cl. 33/244, 350/65 511 int. Cl G02b 23/16, F4lg 11/00 581 Field of Search 33/244; 350/05 [56] References Cited UNITED STATES PATENTS 2,488,188 9/l949 Halvorson 33/244 2,849,795 9/]958 Vissing 33/244 Primary Examiner-Harry N. Haroian Assistant Examiner-Richard R. Steams Attorney, Agent, or Firm-Wells, St. John & Robert [57] ABSTRACT A lens cover for the lens of a telescope embodies a collar of polyethylene having a high degree of flexibility which is mounted over the end of the telescope. The collar has a melting point of about 300 F. The collar has ears integral therewith and a pivot pin on which a stiff lid is pivoted. The collar has an interior annular shoulder, an exterior shoulder, and a shallow annular extension beyond the exterior shoulder over which the lid snaps, the extension and shoulder having a cooperating rib and groove to hold the lid closed. The collar has a thickened portion spaced circumferenctially of the collar from the ears. An operating button and lever unit of another synthetic resin product (DuPont Zytel lOl having a melting point of 700 F is coated with a mold release material and molded in the thickened portion of the collar and has an extension projecting above the exterior shoulder for operating the lever. The material of the enlargement fills into a central aperture of the lever to provide a pivot for it.
2 Claims, 7 Drawing Figures LENS COVER AND OPERATING- BUTTON ASSEMBLY BACKGROUND OF THE INVENTION The lens covers for rifle. telescopes shown herein are of a general type that have been in use for many years.
. The U.S. Pat. No. 2,849,795 to Royal A. Vissing is the when released willspring open and yetwill stay closed until positively pushed part way open. The lid opening means must be on the collar and of such nature that the opening of the lid does not tend to pull the collar off the lens barrel.
The purpose of this invention istto provide the lid'and collar with a complete sealing connection and. a lift lever housed in the collarzto break'the sealing connection. Specifically, this invention provides a circular lever body molded in the collar with one projection underlying the lid and another projection-projecting axially of the collar alongsidethe'rlid edgeto-turn the. circular lever body to lift thefirst projection andpush the lid away fromthe collar.
BRIEF 'DESCRIPTIONOF THE. DRAWINGS FIG. 1 is a side view. of 'airifle telescope equipped with lens covers embodyingthe invention.
FIG. 2. is an end view ofthe lens cover.
FIG. 3 is asectional viewonthezline 3-3 of FIG. 2.
FIG. 4 is an end view of theslens coverlookingrearward from the lensbarrel showing the structure ofthe collar.
FIG. is an enlarged sectional viewonathe line 55 of FIG. 2.
FIG. 6 is an enlarged sectional view. on the line=6-.6 of FIG. 2.
FIG. 7 is an enlarged sectional viewon theline 77 of FIG. 1. The line 77 is also indicated on FIG. '5.
DESCRIPTION OF A PREFERRED FORM OF THE INVENTION In FIG. 1 the lens barrel lofa rifletelescope has both ends provided withcovers indicated at 2. The covers 2 are identical and FIGS. 2 to 7 show the details of each cover 2.
The two major parts of the cover are a lid 3 which is of a stiff polyethylene material and a-hollow collar 4 which is a resilient polyethylene resin which is capable of stretching slightly to go over thelens barrel 1. This collar has a relatively low melting. point, about 300 F.
The lid 3 has an annularflange 5'which hasa groove 6 therein to receive a rib 7 in the groove16 and hold the lid 3 on the collar 4. Rib 7 is formed about an annular extension 8 of collar 4. A hinge sleeve 9 is formed on the lid and extends'between hinge ears 10 on the collar 4. The sleeve 9 and ears 10 receive a hinge pin 11 to connect them. A spring 12 has one end'l3 embedded in the sleeve 9 and is wrapped around the pin 11 with its free endl4 resting on the collar 4 between the cars 10. The spring 12. is woundunder tension so that it tends to swing the lid 3 open away from the collar 4.
Spring 12. is designed that when embedded within sleeve 9, it has sufficient coiled force to quickly open the released lid 3 and to then holdlid 3 above collar 4 .2 in a substantially horizontalposition under slight tension. This open position is tdefined by abutment of the side edges of lid 3 against the ears l0, and is shown in dashed linesin FIG. 1.
It is also important to note that spring 12 is totally enclosed within the assembly when the lid 3 is closed, protecting the metal spring from weather conditions and eliminating the possibility of accidental snagging of the relatively light spring wire.
As shown best in FIGS. 3 and 4, the collar 4 has thick wall portions 4d at the cars 10 and opposite them. In.
between these portions, are thin wall portions 4b that extend inwardly to an edge 4c. The portion beyond the edge 40 is of the same'thickness as the portions 4d up to the extension 8. This construction provides adequate strength for the collar 4 and provides a shoulder at edge 4c for. abutment with the end of lens barrel 1.
The lid 3 has a lift tab 15 located about (counterclockwise with respect to FIG. 2) around the lid which seats in a thickened wall portion 4d on the collar 4 andwhich, when so seated, is flush'withthe shoulder .atedge 4c of'the collar 4. When pressureisapplied on the finger projection 17 in a direction toward collar 4, the projection 18 lifts the tab 15 to break the lid 3 away from the rib 7. The spring 12 then snaps the lid wide open.
The lift lever 16 is madeof a-hardmaterial such as the synthetic resin product made by the DuPont Company and sold under their trade name Zytel 101. The melting point of this material is about 700 F. This makes it possible to coat the finished lift lever 16 with a moldrelease compoundand mount it in the die for the collar 4 in a position so that when the collar 4 is molded, the thickened wall portion 4d will cover the lever and form a pivot pin 20 for the lever 16. Upon removal from the die, the collar 4 has the lever 16 pivoted therein in the position shown in FIG. 5. The pivot pin 20 prevents the lever from snapping out of its socket inthe wall portion 4d.
The integral pivot pin 20 molded through lift lever 16 is a most important feature of this disclosure. It has been found impractical to use separate hinge pins in soft molded plastic materials. First, the fabrication step is .costly. Secondly, it is subject to being torn from the flexible material or broken when subjected to outdoor use by sportsmen. This is overcome by injection molding of pivot pin 20 under high pressure integrally with the molding of collar 4 to provide one complete molded article.
These lens covers for rifle telescopes may be subjected to all sorts of weather, mud, rain, and snow, saltwater and freezing. By reason of the construction just described, the lens covers are and remain substantially impervious to the weather attacks and keep the lenses clear.
The embodiments of my invention in which an exclusive right is claimed are defined in the following claims:
1. A lens cover comprising: a resilient collar adapted to be stretched over a lens barrel,
3 4 a lid hinged to one end of said collar; i lift tab; spring means conncted to the collar and the lid and the lift lever having a finger projection extending urging the lid away from said one end of the collar; from the collar alongside the lid by which the lever may be pivoted to push said lift tab away from the the collar and lid having complementary annular 5 collar. 7
flanges, one of which is ribbed and the other being 2. The invention defined in claim 1 wherein the collar grooved, to hold the lid on the collar; has a thickened wall adjacent to the hinge point with a push tab on the lid remote from the hinge point the lid, and opposite the hinge point with thin walls adapted when pushed away from the collar to retherebetween, and lease the lid flange from the collar; the collar having a thick end all around at the flanged a lift lever pivotally embedded in the collar and havend, forming a stop shoulder for the lens cover.
ing a projection thereon in position to engage the

Claims (2)

1. A lens cover comprising: a resilient collar adapted to be stretched over a lens barrel, a lid hinGed to one end of said collar; spring means conncted to the collar and the lid and urging the lid away from said one end of the collar; the collar and lid having complementary annular flanges, one of which is ribbed and the other being grooved, to hold the lid on the collar; a push tab on the lid remote from the hinge point adapted when pushed away from the collar to release the lid flange from the collar; a lift lever pivotally embedded in the collar and having a projection thereon in position to engage the lift tab; the lift lever having a finger projection extending from the collar alongside the lid by which the lever may be pivoted to push said lift tab away from the collar.
2. The invention defined in claim 1 wherein the collar has a thickened wall adjacent to the hinge point with the lid, and opposite the hinge point with thin walls therebetween, and the collar having a thick end all around at the flanged end, forming a stop shoulder for the lens cover.
US00335242A 1973-02-23 1973-02-23 Lens cover and operating button assembly Expired - Lifetime US3831285A (en)

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942864A (en) * 1974-10-15 1976-03-09 Numbers Jody L Lens cap for optical instruments with pivotally mounted lens cover
FR2296863A1 (en) * 1974-12-30 1976-07-30 Skovajsa Joseph Protective cover for viewing lenses - has attachment ring, cover and spring connector suitable for firearm sight
US4456348A (en) * 1979-02-16 1984-06-26 Carl Zeiss-Stiftung Apparatus for examining eyes
US4515082A (en) * 1983-09-22 1985-05-07 Ford Aerospace & Communications Corporation Guided projectile lens cover
US4777730A (en) * 1986-08-04 1988-10-18 Huggins Edward R Open sight addition for a telescopic gun sight
US4899450A (en) * 1986-08-04 1990-02-13 Huggins Edward R Open sight addition for a telescopic gun sight
US4915332A (en) * 1989-04-27 1990-04-10 Ouellette Daniel P Portable pool cue holder
US5150528A (en) * 1991-03-25 1992-09-29 Quake Industries, Inc. Scope cover
US5283427A (en) * 1991-01-29 1994-02-01 Itt Corporation Night sight for a missile launcher comprising an image intensifier tube, a reticle, and an objective lens
WO1995029377A1 (en) * 1994-04-25 1995-11-02 Blount, Inc. Lens cap assembly and removal method
US5566490A (en) * 1995-03-31 1996-10-22 Owen; Dave Sight cover
US6416189B1 (en) * 2000-09-26 2002-07-09 Christopher Michael Watson Water-resistant, scope shade attachment apparatus
WO2006076786A1 (en) * 2005-01-18 2006-07-27 Olshevskii Aleksandr P Optical instrument
US20060171146A1 (en) * 2005-01-28 2006-08-03 Ronald Bensinger Flashlight lens cover
US20060218841A1 (en) * 2004-11-10 2006-10-05 Leupold & Stevens, Inc. Pivoting lens covers for riflescopes and the like
US20080186584A1 (en) * 2007-02-01 2008-08-07 Marlin Daniel Ballard Spring-biased multi-axis articulating lens cover
US7484856B1 (en) 2006-01-30 2009-02-03 Gg&G, Inc. Lens cover for an optical sight
US20100037506A1 (en) * 2008-08-12 2010-02-18 Carley Jason C Cover for a Telescopic Sight
US8024885B1 (en) * 2005-04-06 2011-09-27 Gg & G, Inc. Lens cover for an optical sight
CN102495465A (en) * 2011-12-12 2012-06-13 中国科学院长春光学精密机械与物理研究所 Novel foldable electric lens cover applicable to polar axis type telescope
US9777991B1 (en) 2016-09-09 2017-10-03 Sam Guelli Rifle scope protective covering
US10139197B1 (en) 2017-07-12 2018-11-27 Sellmark Corporation Firearm sight with retractable sunshade
DE202019101414U1 (en) 2019-03-13 2020-06-16 Heinz-Eckhard Engel Spring cover
US10901198B2 (en) 2019-01-31 2021-01-26 Trijicon, Inc. Internal retainer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488188A (en) * 1947-05-15 1949-11-15 Earl H Halvorson Telescopic sight protector
US2849795A (en) * 1955-11-15 1958-09-02 Royal A Vissing Lens covers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488188A (en) * 1947-05-15 1949-11-15 Earl H Halvorson Telescopic sight protector
US2849795A (en) * 1955-11-15 1958-09-02 Royal A Vissing Lens covers

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942864A (en) * 1974-10-15 1976-03-09 Numbers Jody L Lens cap for optical instruments with pivotally mounted lens cover
FR2296863A1 (en) * 1974-12-30 1976-07-30 Skovajsa Joseph Protective cover for viewing lenses - has attachment ring, cover and spring connector suitable for firearm sight
US4456348A (en) * 1979-02-16 1984-06-26 Carl Zeiss-Stiftung Apparatus for examining eyes
US4515082A (en) * 1983-09-22 1985-05-07 Ford Aerospace & Communications Corporation Guided projectile lens cover
US4777730A (en) * 1986-08-04 1988-10-18 Huggins Edward R Open sight addition for a telescopic gun sight
US4899450A (en) * 1986-08-04 1990-02-13 Huggins Edward R Open sight addition for a telescopic gun sight
US4915332A (en) * 1989-04-27 1990-04-10 Ouellette Daniel P Portable pool cue holder
US5283427A (en) * 1991-01-29 1994-02-01 Itt Corporation Night sight for a missile launcher comprising an image intensifier tube, a reticle, and an objective lens
US5150528A (en) * 1991-03-25 1992-09-29 Quake Industries, Inc. Scope cover
WO1995029377A1 (en) * 1994-04-25 1995-11-02 Blount, Inc. Lens cap assembly and removal method
US5495676A (en) * 1994-04-25 1996-03-05 Blount, Inc. Lens cap assembly and removal method
US5561563A (en) * 1994-04-25 1996-10-01 Blount, Inc. Cross-polarization using two polarized lenses
US5566490A (en) * 1995-03-31 1996-10-22 Owen; Dave Sight cover
US6416189B1 (en) * 2000-09-26 2002-07-09 Christopher Michael Watson Water-resistant, scope shade attachment apparatus
US20060218841A1 (en) * 2004-11-10 2006-10-05 Leupold & Stevens, Inc. Pivoting lens covers for riflescopes and the like
US7721480B2 (en) 2004-11-10 2010-05-25 Leupold & Stevens, Inc. Pivoting lens covers for riflescopes and the like
WO2006076786A1 (en) * 2005-01-18 2006-07-27 Olshevskii Aleksandr P Optical instrument
US20060171146A1 (en) * 2005-01-28 2006-08-03 Ronald Bensinger Flashlight lens cover
US7128436B2 (en) 2005-01-28 2006-10-31 W. T. Storey, Inc. Flashlight lens cover
US8024885B1 (en) * 2005-04-06 2011-09-27 Gg & G, Inc. Lens cover for an optical sight
US7484856B1 (en) 2006-01-30 2009-02-03 Gg&G, Inc. Lens cover for an optical sight
US7585080B2 (en) * 2007-02-01 2009-09-08 Marlin Daniel Ballard Spring-biased multi-axis articulating lens cover
US20080186584A1 (en) * 2007-02-01 2008-08-07 Marlin Daniel Ballard Spring-biased multi-axis articulating lens cover
US20100037506A1 (en) * 2008-08-12 2010-02-18 Carley Jason C Cover for a Telescopic Sight
US8240076B2 (en) * 2008-08-12 2012-08-14 Carson Optical, Inc. Cover for a telescopic sight
CN102495465A (en) * 2011-12-12 2012-06-13 中国科学院长春光学精密机械与物理研究所 Novel foldable electric lens cover applicable to polar axis type telescope
CN102495465B (en) * 2011-12-12 2013-08-21 中国科学院长春光学精密机械与物理研究所 Novel foldable electric lens cover applicable to polar axis type telescope
US9777991B1 (en) 2016-09-09 2017-10-03 Sam Guelli Rifle scope protective covering
US10139197B1 (en) 2017-07-12 2018-11-27 Sellmark Corporation Firearm sight with retractable sunshade
US10901198B2 (en) 2019-01-31 2021-01-26 Trijicon, Inc. Internal retainer
DE202019101414U1 (en) 2019-03-13 2020-06-16 Heinz-Eckhard Engel Spring cover

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Owner name: HECKERMAN, WILLIAM L., WYOMING

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BUTLER CREEK CORPORATION;REEL/FRAME:007639/0408

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