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1. 发明专利

DE1497626C2 未知
公开(公告)号：DE1497626C2
公开(公告)日：1975-05-15
申请号：DE1497626
申请日：1966-10-01
申请人： VOLK, DAVID, PEPPER PIKE, OHIO (V.ST.A.)
发明人： VOLK, DAVID, PEPPER PIKE, OHIO (V.ST.A.)
IPC分类号： G02B3/04 , G02C7/04
摘要： 1,156,454. Contact lenses. D. VOLK. Sept.26, 1966 [Oct. 4, 1965], No.42786/66. Heading G2J. A series of corneal contact lenses has the corneal surface of each lens formed as a continuous and regular aspherical surface of revolution of the conoid type which decreases in curvature from its apex to its peripheral edge, the lenses being arranged in a graded series of apical radii of curvature of values ranging from 6À50 mm to 8À50 mm in steps of 0À05 mm and having eccentricities of 0À4 to 1À6 in steps of 0À1 units for each apical radius of curvature and being of sufficient thickness to provide optically coacting front surfaces. The corneal surface may be a prolate ellipsoid, paraboloid or hyperboloid and the front surface an oblate ellipsoid, sphere, prolate ellipsoid, paraboloid or hyperboloid. Details are given in the Specification for evaluating the parameters of a lens of minimum thickness and thus minimum weight in which (1) the centre and edge thicknesses are substantially equal, these generally being negative power lenses and (2) the centre thickness exceeding the edge thickness, these generally being positive power lenses.

2. 发明专利

GB217004A Improvements in or relating to electric batteries 未知
公开(公告)号：GB217004A
公开(公告)日：1924-06-12
申请号：GB1109323
申请日：1923-04-24
申请人： DAVID PEPPER
IPC分类号： H01M6/06 , H01M10/20
摘要： 217,004. Pepper, D. April 24, 1923. Electrodes; electrolytes; supports for electrodes.-A battery particularly suitable for a flash lamp comprises a leaden or lead-antimony cell A, coated first with electrodeposited lead peroxide and then with a layer of the same substance applied mechanically, and a zinc electrode D in the form of an inverted cup, spaced.from the cell A by a seal J of non- permeable non-conducting material such as asphalte. The second layer of lead peroxide may be mixed with a binder and applied to the cell. A porous layer C separates the electrodes. As electrolyte there may be used dilute sulphuric acid or bisulphate of sodium or potassium, in liquid, jelly, or paste form. The zinc cup D is amalgamated when peroxide of lead is used. It may be coated on its non-active surfaces with layers F , F of asphalte or the like. A washer I is inserted before formation of the seal J. The cell bottom may be provided with internal ribs, or may be plain. In a modification the zine cup is perforated, and is in contact internally and externally with layers of paper thinly coated with zinc amalgam. A helical spring of stiff paper presses the inner layer of paper against the zinc. The top of the zinc cup has strengthening ribs radiating from a hollow boss which is fitted with a screw plug and serves for the introduction of the electrolyte. The asphalte plug extends over the whole end of the zinc cup.

3. 发明专利

DE1729096C2 未知
公开(公告)号：DE1729096C2
公开(公告)日：1973-01-04
申请号：DE1729096D
申请日：1967-09-30
申请人： VOLK, DAVID, PEPPER PIKE, OHIO (V.ST.A.)
发明人： VOLK, DAVID, PEPPER PIKE, OHIO (V.ST.A.)
IPC分类号： B24B13/04 , B29D11/00 , B29C17/10

4. 发明专利

FR528680A 未知
公开(公告)号：FR528680A
公开(公告)日：1921-11-17
申请号：FR528680D
申请日：1920-12-15
申请人： DAVID PEPPER
发明人： PEPPER DAVID
IPC分类号： B22D17/00

5. 发明专利

FR527755A 未知
公开(公告)号：FR527755A
公开(公告)日：1921-10-29
申请号：FR527755D
申请日：1920-11-27
申请人： DAVID PEPPER
发明人： PEPPER DAVID
IPC分类号： H01M10/12
摘要： 154,590. Pepper, D. Nov. 29, 1919, [Convention date]. Electrodes; separators; diaphragms; absorbents. -A cell comprises a container A of lead-antimony alloy containing between three and six per cent of antimony and pasted with active material B, an absorbent jar C of wood pulp, blotting-paper, or other material which expands when wet, and an inner pasted electrode, the jar C pressing against the active material of both electrodes. The active material may consist of lead peroxide, sulphuric acid being used as electrolyte. The electrode may consist of a lead grid bent into the form shown in plan in Fig. 3, a terminal F projecting from the uppermost of two arms F connecting the portions F , F of the grid. The jar C is filled with absorbent material similar to that of which the jar is composed and it may be provided with a flanged opening in the bottom. The cell is closed by a layer of sawdust G and an asphalt seal H.

6. 发明专利

GB201933A Improvements in and relating to electric batteries 未知
公开(公告)号：GB201933A
公开(公告)日：1924-02-07
申请号：GB1995223
申请日：1923-08-03
申请人： DAVID PEPPER
IPC分类号： H01M2/04 , H01M6/08
摘要： 201,933. Pepper, D. Aug. 7, 1922, [Convention date]. Cells; cases; electrodes supports for electrodes; amalgamating; gas collectors. - A cell having a lead containe A forming an electrode, and a tubular zinc electrode C is sealed with plastic material D, E which interlocks with openings A , C in the electrodes. The material passing through the openings A also unites with a plastic layer I covering the exterior of the cell. The inner surface of the electrode A is covered with lead peroxide B, which is separated from the zinc tube C by the electrolyte J which may be in the form of a jelly. The lower end of the tube C is closed by a plug H which is formed with a gutter H containing amalgam and is extended as shown at H to the peroxide layer B. An opening C in the tube C allows any gas generated to pass into the interior of the tube. In a modification the tube C is made with a closed top which extends through the seal D, the material E forming a lining within the top of the tube. The tube C may be perforated throughout its length to enable the electrolyte to have access to the interior. The Specification as open to inspection under Sect. 91 (3) (a) states that the battery also embodies other features claimed in Specification 217,004. This subject-matter does not appear in the Specification as accepted.

7. 发明专利

GB154590A Improvements in electric batteries 未知
公开(公告)号：GB154590A
公开(公告)日：1922-04-27
申请号：GB3356220
申请日：1920-11-27
申请人： DAVID PEPPER
IPC分类号： H01M10/12
摘要： 154,590. Pepper, D. Nov. 29, 1919, [Convention date]. Electrodes; separators; diaphragms; absorbents. -A cell comprises a container A of lead-antimony alloy containing between three and six per cent of antimony and pasted with active material B, an absorbent jar C of wood pulp, blotting-paper, or other material which expands when wet, and an inner pasted electrode, the jar C pressing against the active material of both electrodes. The active material may consist of lead peroxide, sulphuric acid being used as electrolyte. The electrode may consist of a lead grid bent into the form shown in plan in Fig. 3, a terminal F projecting from the uppermost of two arms F connecting the portions F , F of the grid. The jar C is filled with absorbent material similar to that of which the jar is composed and it may be provided with a flanged opening in the bottom. The cell is closed by a layer of sawdust G and an asphalt seal H.

8. 发明专利

DE1677166A1 未知
公开(公告)号：DE1677166A1
公开(公告)日：1970-03-05
申请号：DE1677166
申请日：1963-08-22
申请人： VOLK DAVID PEPPER PIKE
发明人： PIKE VOLK DAVID PEPPER
IPC分类号： B23Q27/00 , B24B13/00 , B24B13/04

9. 发明专利

GB155821A Improvements in methods and apparatus for casting metal cups 未知
公开(公告)号：GB155821A
公开(公告)日：1921-11-10
申请号：GB3424220
申请日：1920-12-03
申请人： DAVID PEPPER
摘要： 155,821. Pepper, D. Dec. 19, 1919, [Convention date]. Casting-machines; metal-pouring; castings, extracting.-Thin metal cups, for instance of lead or zinc for electric batteries, are made by connecting a mould with a fused metal reservoir to fill it, forcing in a core or plunger to press the excess of metal back into the reservoir, and then cutting off the metal above the top of the core to form the bottom of the cup. A series of moulds G are carried by a rotating table E their open tops being flush with the table top. A reservoir I having an open bottom is held on the table by fixed arms K and can be moved into position over the moulds which it fills as the table rotates. Plungers H close the bottoms of the moulds in the position I and each is moved up in turn by pins H engaging a stationary cam ring D to press out the excess metal and remains in this position 18, Fig. 2, until the metal is cool when it is raised to lift its cup 0 from the mculd and allow weighted extractor bars N, N , Figs. 1 and 3, to pass below the cup 0 which is stripped from the plunger as it again descends. The reservoir is heated by a burner J and has supply and overflow pipes J, J'. In a modification, the cup is withdrawn from the mould G downwards by the plunger h, Fig. 11, and sleeve p and then the plunger is withdrawn downwards so that the sleeve p strips the cup from it. The plunger and sleeve are operated by stationary cams d , d .

10. 发明申请

US20050175056A1 Electrically pumped semiconductor active mirror with improved performance and reduced parasitics 失效
标题翻译：电泵浦半导体主动镜具有改进的性能和减少的寄生效应
公开(公告)号：US20050175056A1
公开(公告)日：2005-08-11
申请号：US10774001
申请日：2004-02-06
申请人： David Pepper , David Sumida
发明人： David Pepper , David Sumida
IPC分类号： H01S3/14 , H01S3/23 , H01S5/024 , H01S5/042 , H01S5/20 , H01S5/50
CPC分类号： H01S5/50 , H01S3/2308 , H01S3/2383 , H01S5/02423 , H01S5/0425 , H01S5/2063 , H01S2301/02
摘要： A system and a method for providing more gain while minimizing the potential for parasitic oscillation and amplified spontaneous emissions in an optical amplifier or laser system, utilizing a partitioned monolithic gain element. The monolithic gain element being partitioned into discontinuous amplifying gain regions such that parasitic modes and amplified spontaneous emissions are substantially obviated
摘要翻译：一种系统和方法，用于在利用分隔的单片增益元件的同时最大限度地减少光放大器或激光系统中的寄生振荡和放大的自发发射的可能性，从而提供更多的增益。单片增益元件被划分为不连续的放大增益区域，使得寄生模式和放大的自发发射基本上被消除

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